RE: Intel X25-M MLC SSD benchmarks

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

 




-----Original Message-----
From: Eric D. Mudama [mailto:edmudama@xxxxxxxxx] 
Sent: Friday, December 12, 2008 5:55 PM
To: Matthew Wilcox
Cc: Bart Van Assche; Raz Ben-Yehuda; linux-ide@xxxxxxxxxxxxxxx;
linux-scsi@xxxxxxxxxxxxxxx
Subject: Re: Intel X25-M MLC SSD benchmarks

On 12/12/08, Matthew Wilcox <matthew@xxxxxx> wrote:
> On Fri, Dec 12, 2008 at 07:25:18AM -0700, Eric D. Mudama wrote:
>> Oops, I guess I assumed that by writing a few gigabytes of data it
>> wouldn't matter that much.  I'll run the test again in a bit once I'm
>> off this solaris machine.
>
> You need to rescale for 2008; people often have 4GB or more RAM in
their
> machines ... hell, I have one machine here from 2002 with 14GB in it
> (I don't power it up very often because it's too noisy).  The test was
> only writing 1GB of data, which would fit in the page cache of my
laptop,
> never mind the kind of machine that's likely to have an 8-way array
> attached to it.

>>I just retested on a linux box at work, and got 79 MB/s on both the
>>X18-M and X25-M, and 197MB/s on an X25-E.  All were done with bs=1M
>>count=1000 oflag=direct.

What is the serial number of your x25.M ? 
what controller ? 
How new is it ? 
Please dd all disk and then retest, just to be sure you used all erase
blocks. 

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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux