Re: [Jfs-discussion] benchmark results

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

 



On 26.12.09 08:00, jim owens wrote:
>> I was using "sync" to make sure that the data "should" be on the disks 
> 
> Good, but not good enough for many tests... info sync
[...]
>        On Linux, sync is only guaranteed to  schedule  the  dirty  blocks  for
>        writing;  it  can  actually take a short time before all the blocks are
>        finally written.

Noted, many times already. That's why I wrote "should be" - but in this
special scenario (filesystem speed tests) I don't care for file
integrity: if I pull the plug after "sync" and some data didn't make it
to the disks, I'll only look if the testscript got all the timestamps
and move on to the next test. I'm not testing for "filesystem integrity
after someone pulls the plug" here. And remember, I'm doing "sync" for
all the filesystems tested, so the comparison still stands.

Christian.
--
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

[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux