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From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin-developers@cygwin.com
Subject: Re: cygrunsrv + sshd + rsync = 20 times too slow -- throttled?
Date: Wed, 8 Sep 2021 19:45:29 +0900	[thread overview]
Message-ID: <20210908194529.148fe98ca7593b079d0b1e65@nifty.ne.jp> (raw)
In-Reply-To: <YTiKpQxwwnK0T3KG@calimero.vinschen.de>

[-- Attachment #1: Type: text/plain, Size: 1918 bytes --]

Hi Corinna,

On Wed, 8 Sep 2021 12:04:21 +0200
Corinna Vinschen wrote:
> On Sep  8 18:45, Takashi Yano wrote:
> > On Wed, 8 Sep 2021 11:26:21 +0200
> > Corinna Vinschen wrote:
> > > On Sep  8 11:01, Corinna Vinschen wrote:
> > > > What exactly is the problem in the code which results in high CPU
> > > > load?  Can you explain this a bit?  Maybe we need an entirely
> > > > different approach to avoid that.
> > > 
> > > I saw your new patch, but I don't see the problem.  I typed a lot of
> > > keys in mintty quickly and what happens is that the load of mintty
> > > goes up to 9% on a 4 CPU system, but only temporarily while typing.
> > > How do you reproduce the problem?
> > 
> > Did you apply the patch
> > 0001-Cygwin-select-Introduce-select_evt-event-for-pipe.patch
> > or
> > 0001-Cygwin-select-Introduce-select_sem-semaphore-for-pip.patch
> > ?
> > 
> > With these patch, the problem does not occur. The problem occurs
> > with the commit dccde0dc.
> 
> dccde0dc is 23bb19efcc45 in topic/pipe ATM (after force push) so, yes,
> I'm running this with topic/pipe HEAD including this patch.
> 
> > With my 4 core 8 thread CPU, CPU loads goes up to 12-13 % if
> > I type keys using key repeat (30cps) after the commit dccde0dc.
> 
> Oh, wow!  As I wrote above, before applying "Cygwin: select: Introduce
> select_sem semaphore for pipe." I only saw a 9% load.  After applying
> the patch I saw the same load.
> 
> I don't know what I did differently, but after reverting your semaphore
> patch I now see loads of up to 30%.  So, never mind, apparently I tested
> wrongly before.  Your patch reduces the load tremendously.

Thanks for testing again.

> Just one question.  Would you mind to split your patch into two parts,
> one being just the revert of your "Improve select/poll response." patch
> and one introducing select_sem?

I split the patch as you advised.

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>

[-- Attachment #2: 0001-Revert-Cygwin-select-Improve-select-poll-response.patch --]
[-- Type: application/octet-stream, Size: 2525 bytes --]

From bc9fde7a1e4f0c80c4a58c7ed3e9b83c1f4f24d2 Mon Sep 17 00:00:00 2001
From: Takashi Yano <takashi.yano@nifty.ne.jp>
Date: Wed, 8 Sep 2021 19:22:40 +0900
Subject: [PATCH 1/2] Revert "Cygwin: select: Improve select/poll response."

... because this commit (23bb19ef) causes high CPU load.
---
 winsup/cygwin/select.cc | 32 ++++----------------------------
 1 file changed, 4 insertions(+), 28 deletions(-)

diff --git a/winsup/cygwin/select.cc b/winsup/cygwin/select.cc
index 5e338e43f..c85ce748c 100644
--- a/winsup/cygwin/select.cc
+++ b/winsup/cygwin/select.cc
@@ -726,7 +726,6 @@ thread_pipe (void *arg)
   select_pipe_info *pi = (select_pipe_info *) arg;
   DWORD sleep_time = 0;
   bool looping = true;
-  DWORD t0 = GetTickCount ();
 
   while (looping)
     {
@@ -746,12 +745,7 @@ thread_pipe (void *arg)
 	break;
       cygwait (pi->bye, sleep_time >> 3);
       if (sleep_time < 80)
-	{
-	  DWORD t1 = GetTickCount ();
-	  if (t0 != t1)
-	    ++sleep_time;
-	  t0 = t1;
-	}
+	++sleep_time;
       if (pi->stop_thread)
 	break;
     }
@@ -927,7 +921,6 @@ thread_fifo (void *arg)
   select_fifo_info *pi = (select_fifo_info *) arg;
   DWORD sleep_time = 0;
   bool looping = true;
-  DWORD t0 = GetTickCount ();
 
   while (looping)
     {
@@ -947,12 +940,7 @@ thread_fifo (void *arg)
 	break;
       cygwait (pi->bye, sleep_time >> 3);
       if (sleep_time < 80)
-	{
-	  DWORD t1 = GetTickCount ();
-	  if (t0 != t1)
-	    ++sleep_time;
-	  t0 = t1;
-	}
+	++sleep_time;
       if (pi->stop_thread)
 	break;
     }
@@ -1128,7 +1116,6 @@ thread_console (void *arg)
   select_console_info *ci = (select_console_info *) arg;
   DWORD sleep_time = 0;
   bool looping = true;
-  DWORD t0 = GetTickCount ();
 
   while (looping)
     {
@@ -1148,12 +1135,7 @@ thread_console (void *arg)
 	break;
       cygwait (ci->bye, sleep_time >> 3);
       if (sleep_time < 80)
-	{
-	  DWORD t1 = GetTickCount ();
-	  if (t0 != t1)
-	    ++sleep_time;
-	  t0 = t1;
-	}
+	++sleep_time;
       if (ci->stop_thread)
 	break;
     }
@@ -1373,7 +1355,6 @@ thread_pty_slave (void *arg)
   select_pipe_info *pi = (select_pipe_info *) arg;
   DWORD sleep_time = 0;
   bool looping = true;
-  DWORD t0 = GetTickCount ();
 
   while (looping)
     {
@@ -1393,12 +1374,7 @@ thread_pty_slave (void *arg)
 	break;
       cygwait (pi->bye, sleep_time >> 3);
       if (sleep_time < 80)
-	{
-	  DWORD t1 = GetTickCount ();
-	  if (t0 != t1)
-	    ++sleep_time;
-	  t0 = t1;
-	}
+	++sleep_time;
       if (pi->stop_thread)
 	break;
     }
-- 
2.33.0


[-- Attachment #3: 0002-Cygwin-select-Introduce-select_sem-semaphore-for-pip.patch --]
[-- Type: application/octet-stream, Size: 4714 bytes --]

From 3b35c69225f82554b186264c6c35b4b1dd874cbd Mon Sep 17 00:00:00 2001
From: Takashi Yano <takashi.yano@nifty.ne.jp>
Date: Wed, 8 Sep 2021 17:18:35 +0900
Subject: [PATCH 2/2] Cygwin: select: Introduce select_sem semaphore for pipe.

- This patch introduces select_sem semaphore which notifies pipe status
  change.
---
 winsup/cygwin/fhandler.cc      |  1 +
 winsup/cygwin/fhandler.h       |  3 +++
 winsup/cygwin/fhandler_pipe.cc | 25 +++++++++++++++++++++++++
 winsup/cygwin/select.cc        | 10 ++++++++--
 4 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index f0c1b68f1..39fe2640a 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -1464,6 +1464,7 @@ fhandler_base::fhandler_base () :
   _refcnt (0),
   openflags (0),
   unique_id (0),
+  select_sem (NULL),
   archetype (NULL),
   usecount (0)
 {
diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index 7aed089eb..d309be2f7 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -217,6 +217,7 @@ class fhandler_base
   void set_ino (ino_t i) { ino = i; }
 
   HANDLE read_state;
+  HANDLE select_sem;
 
  public:
   LONG inc_refcnt () {return InterlockedIncrement (&_refcnt);}
@@ -520,6 +521,8 @@ public:
     fh->copy_from (this);
     return fh;
   }
+
+  HANDLE get_select_sem () { return select_sem; }
 };
 
 struct wsa_event
diff --git a/winsup/cygwin/fhandler_pipe.cc b/winsup/cygwin/fhandler_pipe.cc
index c75476040..ea8ea41dd 100644
--- a/winsup/cygwin/fhandler_pipe.cc
+++ b/winsup/cygwin/fhandler_pipe.cc
@@ -376,6 +376,8 @@ fhandler_pipe::raw_read (void *ptr, size_t& len)
     }
   else if (status == STATUS_THREAD_CANCELED)
     pthread::static_cancel_self ();
+  if (select_sem && nbytes)
+    ReleaseSemaphore (select_sem, get_obj_handle_count (select_sem), NULL);
   len = nbytes;
 }
 
@@ -507,6 +509,8 @@ fhandler_pipe_fifo::raw_write (const void *ptr, size_t len)
     set_errno (EINTR);
   else if (status == STATUS_THREAD_CANCELED)
     pthread::static_cancel_self ();
+  if (select_sem && nbytes)
+    ReleaseSemaphore (select_sem, get_obj_handle_count (select_sem), NULL);
   return nbytes ?: -1;
 }
 
@@ -515,6 +519,8 @@ fhandler_pipe::fixup_after_fork (HANDLE parent)
 {
   if (read_mtx)
     fork_fixup (parent, read_mtx, "read_mtx");
+  if (select_sem)
+    fork_fixup (parent, select_sem, "select_sem");
   fhandler_base::fixup_after_fork (parent);
 }
 
@@ -536,6 +542,15 @@ fhandler_pipe::dup (fhandler_base *child, int flags)
       ftp->close ();
       res = -1;
     }
+  else if (select_sem &&
+	   !DuplicateHandle (GetCurrentProcess (), select_sem,
+			    GetCurrentProcess (), &ftp->select_sem,
+			    0, !(flags & O_CLOEXEC), DUPLICATE_SAME_ACCESS))
+    {
+      __seterrno ();
+      ftp->close ();
+      res = -1;
+    }
 
   debug_printf ("res %d", res);
   return res;
@@ -546,6 +561,11 @@ fhandler_pipe::close ()
 {
   if (read_mtx)
     CloseHandle (read_mtx);
+  if (select_sem)
+    {
+      ReleaseSemaphore (select_sem, get_obj_handle_count (select_sem), NULL);
+      CloseHandle (select_sem);
+    }
   return fhandler_base::close ();
 }
 
@@ -765,6 +785,11 @@ fhandler_pipe::create (fhandler_pipe *fhs[2], unsigned psize, int mode)
 	  fhs[0]->set_read_mutex (mtx);
 	  res = 0;
 	}
+      fhs[0]->select_sem = CreateSemaphore (&sa, 0, INT32_MAX, NULL);
+      if (fhs[0]->select_sem)
+	DuplicateHandle (GetCurrentProcess (), fhs[0]->select_sem,
+			 GetCurrentProcess (), &fhs[1]->select_sem,
+			 0, 1, DUPLICATE_SAME_ACCESS);
     }
 
   debug_printf ("%R = pipe([%p, %p], %d, %y)", res, fhs[0], fhs[1], psize, mode);
diff --git a/winsup/cygwin/select.cc b/winsup/cygwin/select.cc
index c85ce748c..e9e71b269 100644
--- a/winsup/cygwin/select.cc
+++ b/winsup/cygwin/select.cc
@@ -762,7 +762,13 @@ start_thread_pipe (select_record *me, select_stuff *stuff)
     {
       pi->start = &stuff->start;
       pi->stop_thread = false;
-      pi->bye = CreateEvent (&sec_none_nih, TRUE, FALSE, NULL);
+      pi->bye = me->fh->get_select_sem ();
+      if (pi->bye)
+	DuplicateHandle (GetCurrentProcess (), pi->bye,
+			 GetCurrentProcess (), &pi->bye,
+			 0, 0, DUPLICATE_SAME_ACCESS);
+      else
+	pi->bye = CreateSemaphore (&sec_none_nih, 0, INT32_MAX, NULL);
       pi->thread = new cygthread (thread_pipe, pi, "pipesel");
       me->h = *pi->thread;
       if (!me->h)
@@ -780,7 +786,7 @@ pipe_cleanup (select_record *, select_stuff *stuff)
   if (pi->thread)
     {
       pi->stop_thread = true;
-      SetEvent (pi->bye);
+      ReleaseSemaphore (pi->bye, get_obj_handle_count (pi->bye), NULL);
       pi->thread->detach ();
       CloseHandle (pi->bye);
     }
-- 
2.33.0


  reply	other threads:[~2021-09-08 10:45 UTC|newest]

Thread overview: 250+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <41A583E1-C8E7-42AB-9F24-EEC33A41EC60@house.org>
     [not found] ` <20210825201845.07b6400b79dc5558a7761efe@nifty.ne.jp>
     [not found]   ` <f8106fe7-a2b8-d106-3061-4d888124f4b0@cornell.edu>
     [not found]     ` <20210826062934.54f2f2216021c095bb7ba13b@nifty.ne.jp>
     [not found]       ` <d0a8c57d-1ed1-6b4f-c6e7-cbe0e2ec8a1c@cornell.edu>
     [not found]         ` <3b560051-ab27-f392-ca4b-d1fd9b5733b0@cornell.edu>
     [not found]           ` <20210827202440.47706fc2fc07c5e9a1bc0047@nifty.ne.jp>
     [not found]             ` <4f2cb5f3-ce9c-c617-f65f-841a5eca096e@cornell.edu>
     [not found]               ` <20210828022111.91ef5b4ff24f6da9fadb489e@nifty.ne.jp>
     [not found]                 ` <YSn3L0W1M527utK0@calimero.vinschen.de>
     [not found]                   ` <20210828184102.f2206a8a9e5fe5cf24bf5e45@nifty.ne.jp>
     [not found]                     ` <YSok0PoCQn2TPPrn@calimero.vinschen.de>
     [not found]                       ` <20210829004346.c2f80469abc3a07fd4b2918d@nifty.ne.jp>
     [not found]                         ` <e8caa02f-be85-33bc-3f09-347c1cdb0923@cornell.edu>
     [not found]                           ` <20210829174124.0c1ae6c16a3e8da1f490abc7@nifty.ne.jp>
     [not found]                             ` <6e9bb35e-6f4f-cf78-e515-549da487b5ef@cornell.edu>
2021-08-30  7:57                               ` Corinna Vinschen
     [not found]                     ` <20210829180729.48b4e877f773cb3980c5766d@nifty.ne.jp>
     [not found]                       ` <789f056a-f164-d71d-1dc9-230f5a41846d@cornell.edu>
2021-08-30  8:27                         ` Corinna Vinschen
2021-08-30 13:00                           ` Corinna Vinschen
2021-08-30 13:20                             ` Corinna Vinschen
2021-08-30 13:41                               ` Ken Brown
2021-08-30 14:12                                 ` Corinna Vinschen
2021-08-30 14:52                                   ` Ken Brown
2021-08-30 15:15                                     ` Corinna Vinschen
     [not found]                         ` <20210830043756.8aa0ada77db0bfbbe3889f62@nifty.ne.jp>
     [not found]                           ` <47e5dd74-b940-f305-fd5a-c6c9d8f41305@cornell.edu>
2021-08-30  8:48                             ` Corinna Vinschen
     [not found]                       ` <c62d18df-ab7a-7233-62ee-29a8eced5353@cornell.edu>
     [not found]                         ` <20210830091314.f9a2cb71794d0f68cdb5eba7@nifty.ne.jp>
     [not found]                           ` <20210830092259.52f7d54fc3fa340738373af4@nifty.ne.jp>
     [not found]                             ` <d217ef03-7858-5e22-0aa6-f0507eedd9da@cornell.edu>
     [not found]                               ` <20210830170204.fa91eaf110f310f13b67abc3@nifty.ne.jp>
2021-08-30 10:20                                 ` Corinna Vinschen
2021-08-30 10:38                                   ` Corinna Vinschen
2021-08-30 12:04                                   ` Takashi Yano
2021-08-30 12:55                                     ` Corinna Vinschen
2021-08-30 13:31                                       ` Corinna Vinschen
2021-08-31  8:50                                         ` Takashi Yano
2021-08-30 13:51                                       ` Ken Brown
2021-08-30 15:00                                         ` Ken Brown
2021-08-30 15:19                                           ` Corinna Vinschen
2021-08-30 15:43                                             ` Ken Brown
2021-08-31  9:43                                               ` Corinna Vinschen
2021-08-31  8:52                                             ` Takashi Yano
2021-08-31  9:04                                               ` Corinna Vinschen
2021-08-31 11:05                                                 ` Takashi Yano
2021-08-31 15:20                                                   ` Corinna Vinschen
2021-09-01  2:39                                                     ` Takashi Yano
2021-09-01  8:03                                                       ` Corinna Vinschen
2021-09-01  8:13                                                         ` Corinna Vinschen
2021-08-30 13:36                               ` Ken Brown
2021-08-30 14:05                                 ` Corinna Vinschen
2021-08-30 15:53                                   ` Corinna Vinschen
2021-08-30 17:00                                     ` Corinna Vinschen
2021-08-30 17:11                                       ` Corinna Vinschen
2021-08-30 18:59                                       ` Ken Brown
2021-08-30 19:12                                         ` Ken Brown
2021-08-30 20:21                                         ` Corinna Vinschen
2021-08-30 20:14                                       ` Corinna Vinschen
2021-08-30 20:47                                         ` Ken Brown
2021-08-31  8:55                                         ` Takashi Yano
2021-08-31  9:08                                           ` Corinna Vinschen
2021-08-31  9:25                                             ` Takashi Yano
2021-08-31 10:05                                               ` Corinna Vinschen
2021-08-31 10:18                                                 ` Corinna Vinschen
2021-08-31 11:45                                                   ` Takashi Yano
2021-08-31 12:31                                                     ` Takashi Yano
2021-08-31 15:08                                                       ` Corinna Vinschen
2021-08-31 12:33                                                     ` Ken Brown
2021-08-31 15:18                                                       ` Corinna Vinschen
2021-08-31 15:27                                                         ` Corinna Vinschen
2021-08-31 15:50                                                           ` Corinna Vinschen
2021-08-31 16:19                                                             ` Ken Brown
2021-08-31 16:38                                                               ` Ken Brown
2021-08-31 17:30                                                                 ` Corinna Vinschen
2021-08-31 18:54                                                                   ` Ken Brown
2021-08-31 19:51                                                                     ` Corinna Vinschen
2021-08-31 23:02                                                             ` Takashi Yano
2021-09-01  0:16                                                               ` Takashi Yano
2021-09-01  8:07                                                                 ` Corinna Vinschen
2021-09-01  8:23                                                                   ` Takashi Yano
2021-09-01  8:46                                                                     ` Corinna Vinschen
2021-09-01 12:56                                                                       ` Ken Brown
2021-09-01 13:52                                                                         ` Corinna Vinschen
2021-09-01 23:02                                                                           ` Ken Brown
2021-09-02  8:17                                                                             ` Corinna Vinschen
2021-09-02 13:01                                                                               ` Ken Brown
2021-09-02 19:00                                                                                 ` Corinna Vinschen
2021-09-02 19:34                                                                                   ` Ken Brown
2021-09-02 19:35                                                                                   ` Corinna Vinschen
2021-09-02 20:19                                                                                     ` Ken Brown
2021-09-03  9:12                                                                                       ` Corinna Vinschen
2021-09-03 19:00                                                                                         ` Ken Brown
2021-09-03 19:53                                                                                           ` Ken Brown
2021-09-03 19:54                                                                                           ` Corinna Vinschen
2021-09-03 20:05                                                                                             ` Ken Brown
2021-09-03 10:00                                                                                     ` Takashi Yano
2021-09-03 10:13                                                                                       ` Takashi Yano
2021-09-03 11:31                                                                                         ` Corinna Vinschen
2021-09-03 11:41                                                                                           ` Corinna Vinschen
2021-09-03 12:13                                                                                             ` Ken Brown
2021-09-03 15:00                                                                                               ` Corinna Vinschen
2021-09-03 15:14                                                                                                 ` Ken Brown
2021-09-03 15:17                                                                                                   ` Corinna Vinschen
2021-09-03 12:22                                                                                             ` Takashi Yano
2021-09-03 13:27                                                                                               ` Ken Brown
2021-09-03 15:37                                                                                               ` Corinna Vinschen
2021-09-04 12:02                                                                                                 ` Takashi Yano
2021-09-04 12:37                                                                                                   ` Takashi Yano
2021-09-04 14:04                                                                                                     ` Ken Brown
2021-09-04 23:15                                                                                                       ` Takashi Yano
2021-09-05 13:40                                                                                                         ` Takashi Yano
2021-09-05 13:50                                                                                                           ` Takashi Yano
2021-09-05 18:47                                                                                                             ` Ken Brown
2021-09-05 19:42                                                                                                               ` Takashi Yano
2021-09-05 20:09                                                                                                               ` Takashi Yano
2021-09-05 20:27                                                                                                                 ` Ken Brown
2021-09-06  8:13                                                                                                                 ` Corinna Vinschen
2021-09-06 11:16                                                                                                                   ` Takashi Yano
2021-09-06 12:49                                                                                                                     ` Corinna Vinschen
2021-09-06 13:16                                                                                                                       ` Takashi Yano
2021-09-06 16:08                                                                                                                         ` Corinna Vinschen
2021-09-06 23:39                                                                                                                           ` Takashi Yano
2021-09-07  9:14                                                                                                                             ` Corinna Vinschen
2021-09-07 11:03                                                                                                                               ` Takashi Yano
2021-09-07 16:14                                                                                                                       ` Ken Brown
2021-09-07 18:26                                                                                                                         ` Corinna Vinschen
2021-09-03 10:38                                                                                       ` Takashi Yano
2021-09-08 11:32                                                                                     ` Takashi Yano
2021-09-08 11:55                                                                                       ` Corinna Vinschen
2021-09-08 12:33                                                                                         ` Takashi Yano
2021-09-08 17:43                                                                                         ` Ken Brown
2021-09-08 18:28                                                                                           ` Corinna Vinschen
2021-09-02  8:15                                                                       ` Takashi Yano
2021-09-02 18:54                                                                         ` Corinna Vinschen
2021-09-07  3:26             ` Takashi Yano
2021-09-07 10:50               ` Takashi Yano
2021-09-08  0:07                 ` Takashi Yano
2021-09-08  4:11                   ` Takashi Yano
2021-09-08  9:01                     ` Takashi Yano
2021-09-08  9:01                     ` Corinna Vinschen
2021-09-08  9:26                       ` Corinna Vinschen
2021-09-08  9:45                         ` Takashi Yano
2021-09-08 10:04                           ` Corinna Vinschen
2021-09-08 10:45                             ` Takashi Yano [this message]
2021-09-08 10:51                               ` Corinna Vinschen
2021-09-09  3:21                                 ` Takashi Yano
2021-09-09  9:37                                   ` Corinna Vinschen
2021-09-09 10:55                                     ` Takashi Yano
2021-09-09 11:41                                       ` Corinna Vinschen
2021-09-08  9:37                       ` Takashi Yano
2021-09-09  3:41               ` Takashi Yano
2021-09-09  8:05                 ` Takashi Yano
2021-09-09 12:19                   ` Takashi Yano
2021-09-09 12:42                     ` Takashi Yano
2021-09-09 21:53                       ` Takashi Yano
2021-09-10  3:41                         ` Takashi Yano
2021-09-10 10:57                       ` Ken Brown
2021-09-10 15:17                         ` Ken Brown
2021-09-10 15:26                           ` Corinna Vinschen
2021-09-10 22:57                           ` Takashi Yano
2021-09-11  2:17                             ` Ken Brown
2021-09-11  2:35                               ` Takashi Yano
2021-09-11 13:12                                 ` Ken Brown
2021-09-12  6:23                                   ` Takashi Yano
2021-09-12 14:39                                     ` Ken Brown
2021-09-13  9:11                                       ` Corinna Vinschen
2021-09-13 12:30                                         ` Ken Brown
2021-09-12  8:48                                   ` Takashi Yano
2021-09-12 11:04                                     ` Takashi Yano
2021-09-12 15:10                                       ` Ken Brown
2021-09-12 21:46                                         ` Ken Brown
2021-09-12 23:54                                           ` Takashi Yano
2021-09-13  2:19                                             ` Ken Brown
2021-09-13  8:40                                             ` Takashi Yano
2021-09-13 12:51                                               ` Ken Brown
2021-09-13 17:05                                                 ` Ken Brown
2021-09-13  9:42                                           ` Corinna Vinschen
2021-09-13 13:03                                             ` Ken Brown
2021-09-13 18:39                                               ` Takashi Yano
2021-09-12 23:41                                         ` Takashi Yano
2021-09-13 17:42                                       ` Ken Brown
2021-09-13 18:54                                         ` Takashi Yano
2021-09-13 18:32                                       ` Corinna Vinschen
2021-09-13 19:37                                         ` Takashi Yano
2021-09-13 20:15                                           ` Corinna Vinschen
2021-09-14  8:07                                             ` Takashi Yano
2021-09-14  8:47                                               ` Corinna Vinschen
2021-09-14 12:38                                                 ` Ken Brown
2021-09-14 14:15                                                   ` Corinna Vinschen
2021-09-14  8:08                                           ` Takashi Yano
2021-09-14  9:03                                             ` Corinna Vinschen
2021-09-14  9:56                                               ` Takashi Yano
2021-09-14 10:19                                                 ` Takashi Yano
2021-09-14 11:03                                                   ` Corinna Vinschen
2021-09-14 12:05                                                     ` Takashi Yano
2021-09-14 14:17                                                       ` Corinna Vinschen
2021-09-14 22:14                                                       ` Ken Brown
2021-09-15  0:21                                                         ` Takashi Yano
2021-09-15  0:44                                                           ` Takashi Yano
2021-09-15  0:59                                                             ` Takashi Yano
2021-09-15  9:57                                                               ` Corinna Vinschen
2021-09-15 10:48                                                                 ` Takashi Yano
2021-09-15 10:58                                                                   ` Takashi Yano
2021-09-15 11:34                                                                     ` Corinna Vinschen
2021-09-15 11:40                                                                       ` Corinna Vinschen
2021-09-15 11:13                                                                   ` Corinna Vinschen
2021-09-15 11:41                                                                     ` Ken Brown
2021-09-15 11:49                                                                       ` Corinna Vinschen
2021-09-15 11:54                                                                     ` Takashi Yano
2021-09-15 12:20                                                                       ` Corinna Vinschen
2021-09-15 13:04                                                                         ` Takashi Yano
2021-09-15 13:42                                                                           ` Corinna Vinschen
2021-09-15 16:22                                                                             ` Ken Brown
2021-09-15 17:09                                                                               ` Ken Brown
2021-09-16  0:22                                                                                 ` Takashi Yano
2021-09-16  2:28                                                                                   ` Ken Brown
2021-09-16  9:09                                                                                 ` Takashi Yano
2021-09-16 13:02                                                                                   ` Takashi Yano
2021-09-16 13:25                                                                                     ` Corinna Vinschen
2021-09-16 14:27                                                                                       ` Takashi Yano
2021-09-16 15:01                                                                                         ` Corinna Vinschen
2021-09-16 15:46                                                                                           ` Ken Brown
2021-09-16 16:02                                                                                             ` Ken Brown
2021-09-16 19:42                                                                                               ` Takashi Yano
2021-09-16 20:28                                                                                                 ` Ken Brown
2021-09-16 19:48                                                                                               ` Ken Brown
2021-09-16 20:01                                                                                                 ` Takashi Yano
2021-09-17  2:25                                                                                                   ` Ken Brown
2021-09-17  8:31                                                                                                     ` Takashi Yano
2021-09-17 11:16                                                                                                       ` Ken Brown
2021-09-17 16:23                                                                                                         ` Takashi Yano
2021-09-17 17:08                                                                                                           ` Ken Brown
2021-09-17 17:39                                                                                                             ` Jon Turney
2021-09-17 17:43                                                                                                             ` Takashi Yano
2021-09-17 19:53                                                                                                               ` Ken Brown
2021-09-18  1:30                                                                                                                 ` Takashi Yano
2021-09-18  2:07                                                                                                                   ` Ken Brown
2021-09-18  2:10                                                                                                                     ` Ken Brown
2021-09-18  8:03                                                                                                                       ` Takashi Yano
2021-09-18 11:12                                                                                                                         ` Ken Brown
2021-09-18 11:35                                                                                                                           ` Takashi Yano
2021-09-18 14:11                                                                                                                             ` Jon Turney
2021-09-18 13:44                                                                                           ` Ken Brown
2021-09-19  1:31                                                                                             ` Takashi Yano
2021-09-19 14:35                                                                                               ` Ken Brown
2021-09-20  9:29                                                                                                 ` Takashi Yano
2021-09-16  0:13                                                                               ` Takashi Yano
2021-09-16  2:26                                                                                 ` Ken Brown
2021-09-13  9:07                                 ` Corinna Vinschen
2021-09-20 12:52                                   ` Takashi Yano
2021-09-20 19:14                                     ` Ken Brown
2021-09-20 21:09                                       ` Ken Brown
2021-09-20 21:21                                         ` Ken Brown
2021-09-20 21:27                                         ` Takashi Yano
2021-09-20 21:39                                           ` Ken Brown
2021-09-20 22:16                                             ` Takashi Yano
2021-09-20 22:46                                               ` Ken Brown
2021-09-20 22:50                                                 ` Ken Brown
2021-09-20 23:22                                                   ` Takashi Yano
2021-09-21  8:30                                                     ` Takashi Yano
2021-09-21  9:26                                                       ` Mark Geisert
2021-09-21 10:10                                                         ` Takashi Yano
2021-09-21 21:10                                                           ` Mark Geisert
2021-09-21 13:31                                                       ` Ken Brown
2021-09-21 15:36                                                         ` Takashi Yano
2021-09-21 18:51                                                           ` Ken Brown
2021-09-23  8:26                                                             ` Takashi Yano
2021-09-23 13:03                                                               ` Ken Brown
2021-09-23 15:03                                                                 ` Takashi Yano
2021-09-23 16:29                                                                   ` Ken Brown
2021-10-18 10:51                                                                   ` Corinna Vinschen
2021-10-18 12:02                                                                     ` Takashi Yano

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