On Fri, Apr 13, 2012 at 11:31 AM, Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> wrote:
>
> Benchmark is working on files on normal hard disk.
> However, I have I have a large number
> of processes (80 processes, one for each cpu), each reading
> a separate mmaped file. The files are in the same directory.
> That makes cache line bouncing on the counters particularly bad
> due to the large number of processes running.
Ok, that sounds like a potentially realistic case then, even if your
benchmark probably shows the worst possible case.
Considering that the counters are apparently not all that useful, it
does sound like they should just be removed, Ted.
Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
