Re: Intel X25-M MLC SSD benchmarks

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

 



On Thu, Dec 11, 2008 at 09:55:56PM -0700, Eric D. Mudama wrote:
> On 12/11/08, Eric D. Mudama <edmudama@xxxxxxxxx> wrote:
> > Out of curiosity, is write cache enabled or disabled on these devices?
> 
> Oops, I just noticed the oflag=direct, that can have a huge
> performance difference depending on the block size.
> 
> What numbers are you getting without oflag=direct?

Without the oflag=direct option, you're measuring the performance of the
Linux page cache.  That's not very interesting.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux