Re: [Lsf-pc] [LSF/MM TOPIC] async buffered diskio read for userspace apps

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On 01/20/2015 04:53 PM, Milosz Tanski wrote:
On Tue, Jan 20, 2015 at 6:30 PM, Jens Axboe <axboe@xxxxxxxxx> wrote:
On 01/20/2015 04:26 PM, Jens Axboe wrote:
On 01/20/2015 04:22 PM, Milosz Tanski wrote:
Side note Jens.

Can you add a configure flag to disable use of SHM (like for ESX)? It
took me a while to figure out the proper define to manually stick in
the configure.

The motivation for this is using rr (mozila's replay debugger) to
debug fio. rr doesn't support SHM. http://rr-project.org/ gdb's
reversible debugging is too painfully slow.

Yeah definitely, that's mean that thread=1 would be a requirement,
obviously. But I'd be fine with adding that flag.

http://git.kernel.dk/?p=fio.git;a=commit;h=ba40757ed67c00b37dda3639e97c3ba0259840a4

Great, thanks for fixing it so quickly. Hopefully it'll be useful to
others as well.

No problem, it's in the 2.2.5 version as released. Let me know when you are comfortable with me pulling in the cifs engine.

--
Jens Axboe

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