From: Daire Byrne <daire@dneg.com>
To: systemtap <systemtap@sourceware.org>
Subject: vfs.add_to_page_cache not working anymore?
Date: Mon, 12 Jun 2023 16:39:41 +0100 [thread overview]
Message-ID: <CAPt2mGOm2_mXZ5uNEoeZm_H1dGi17229mubquC8P_AfoipjvJQ@mail.gmail.com> (raw)
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I have recently updated my kernel (v6.3) and with systemtap version (v4.8),
an old systemtap script I was using has stopped working.
It looks like I was counting pages added via vfs.add_to_page_cache as a
means to work out file reads (over NFS) per pid.
But this function no longer seem to hit at all for me anymore:
stap -e 'probe vfs.add_to_page_cache { printf("Works.\n"); exit() }'
I am aware that v4.9 is the latest systemtap, but I have been struggling to
get it to compile with the new jupyter stuff (my python version is too old).
Anyway, any help or pointers for vfs.add_to_page_cache greatly appreciated.
Daire
next reply other threads:[~2023-06-12 15:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 15:39 Daire Byrne [this message]
2023-06-13 15:22 ` William Cohen
2023-06-13 16:39 ` Daire Byrne
2023-06-13 17:34 ` William Cohen
2023-06-14 12:11 ` Daire Byrne
2023-06-14 15:58 ` Daire Byrne
2023-11-06 11:20 ` Daire Byrne
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