Adding a new VFS Lttng module for performance testing
slow at samba.org
Mon Oct 22 14:08:31 UTC 2018
On Mon, Oct 22, 2018 at 10:16:08AM +0800, deanraccoon via samba-technical wrote:
> I have submit a patch:
> This will help the performace test, Could someone review it ?
I wonder whether this buys us anything a Systemtap (or the upcoming bpftrace)
script wouln't be able to get us without requiring a VFS module?
Most VFS functions are just abstractions for syscalls, so tracing those is a no
brainer. Stuff like create_file will require debuginfo, but then again debuginfo
is needed anyway for (postmortem) diagnosis.
Ralph Boehme, Samba Team https://samba.org/
Samba Developer, SerNet GmbH https://sernet.de/en/samba/
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