From: Erik Groeneveld <erik@cq2.nl>
To: Andrew Haley <aph@redhat.com>
Cc: "Boehm, Hans" <hans.boehm@hp.com>, "java@gcc.gnu.org" <java@gcc.gnu.org>
Subject: Re: GC leaks debugging
Date: Thu, 14 Apr 2011 10:02:00 -0000 [thread overview]
Message-ID: <BANLkTin--js79v++2OjAtpsNuoPi5AUBoQ@mail.gmail.com> (raw)
In-Reply-To: <4DA6B3AD.7090508@redhat.com>
On Thu, Apr 14, 2011 at 10:43 AM, Andrew Haley <aph@redhat.com> wrote:
>> I will be looking into getting USE_MMAP to work, as I think that would
>> be a more definite solution. However if I enable it, it segvs.
>>
>> Are there any specific obstacles for USE_MUNMAP when used in GCJ, or
>> should it just work?
>
> MUNMAP, hmm. I don't know; it should work but there's no experience.
Ok, that is important information if I start debugging: it is perhaps
only a bug, not a fundamental problem per se.
> Why do you want to munmap, anyway? Are you running out of swap space?
Well, I assume that if the GC unmaps a page (hblk), it can always be
mapped at any other location when a new block is needed, effectively
circumventing fragmentation completely. However, I did not dive into
the exact usage of mmap and I assumed a straightforward way of
utilization of mmap by the GC. I might be wrong....
next prev parent reply other threads:[~2011-04-14 10:02 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-01 8:39 Erik Groeneveld
2011-04-01 8:45 ` Andrew Haley
2011-04-01 9:03 ` Erik Groeneveld
2011-04-01 9:34 ` Andrew Haley
2011-04-02 0:27 ` Boehm, Hans
2011-04-02 9:39 ` Erik Groeneveld
2011-04-03 17:15 ` Erik Groeneveld
2011-04-03 18:00 ` Erik Groeneveld
2011-04-04 8:13 ` Andrew Haley
2011-04-04 8:53 ` Erik Groeneveld
2011-04-04 9:48 ` Andrew Haley
2011-04-05 4:44 ` Boehm, Hans
2011-04-05 8:58 ` Andrew Haley
2011-04-05 6:50 ` Erik Groeneveld
2011-04-05 9:02 ` Andrew Haley
2011-04-05 12:02 ` Erik Groeneveld
2011-04-05 12:55 ` Andrew Haley
2011-04-06 14:30 ` Erik Groeneveld
2011-04-06 18:33 ` Andrew Haley
2011-04-06 18:39 ` David Daney
2011-04-07 17:43 ` Erik Groeneveld
2011-04-08 8:12 ` Erik Groeneveld
2011-04-08 13:56 ` Andrew Haley
2011-04-08 15:35 ` David Daney
2011-04-08 15:53 ` Erik Groeneveld
2011-04-08 15:57 ` Andrew Haley
2011-04-08 15:48 ` Erik Groeneveld
2011-04-09 1:17 ` Boehm, Hans
2011-04-09 8:47 ` Andrew Haley
2011-04-09 10:56 ` Erik Groeneveld
2011-04-10 11:03 ` Erik Groeneveld
2011-04-12 18:43 ` Erik Groeneveld
2011-04-13 8:11 ` Andrew Haley
2011-04-13 12:11 ` Bryce McKinlay
2011-04-13 14:27 ` Andrew Haley
2011-04-14 8:36 ` Erik Groeneveld
2011-04-14 8:43 ` Andrew Haley
2011-04-14 10:02 ` Erik Groeneveld [this message]
2011-04-14 10:50 ` Andrew Haley
2011-04-15 7:32 ` Erik J Groeneveld
2011-04-01 17:41 ` David Daney
2011-04-02 16:21 ` Erik Groeneveld
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