Re: [PATCH 6/6] cfq: Increase default value of target_latency

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Mel Gorman <mgorman@xxxxxxx> writes:

>> And we should probably run our standard set of I/O exercisers at the
>> very least.  But, like I said, it seems like wasted effort.
>> 
>
> Out of curiousity, what do you consider to be the standard set of I/O
> exercisers?

Yes, that was vague, sorry.  I was referring to any io generator that
will perform sequential and random I/O (writes, re-writes, reads, random
writes, random reads, strided reads, backwards reads, etc).  We use
iozone internally, testing both buffered and direct I/O, varying file
and record sizes and across multiple file systems.  Data sets that fall
inside of the page cache tend to have a high standard deviation, so, as
an I/O guy, I ignore those.  ;-)

Cheers,
Jeff
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux