Re: LTP VM test slower under 2.6.3 than 2.4.20

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

 



Kirk True <ktrue@movaris.com> wrote:
>
> Hi Andrew,
> 
> > I'd be wondering if your disk system is correctly running in DMA mode.
> 
> Apparently support for my hardware isn't magically preset in 2.6.3 as it 
> was somehow in 2.4. After including it in the kernel the values returned 
> by hdparm -Tt /dev/hda/ were sped up by a factor of 10! Thanks!
> 
> But...
> 
> > On my 256MB test box, mem01 takes 31 seconds under 2.4.25, 25 seconds
> > under 2.6.3-mm3.
> 
> ...I'm still seeing a factor of two speed slowdown between 2.4.20 and 
> 2.6.3. Would it help to do a vmstat log/graph for the new results?
> 

Try 2.6.3-mm3.  It's tons better at this.

--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/


[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux