Con Kolivas wrote:
On Friday 04 May 2007 18:52, Ingo Molnar wrote:
agreed. Con, IIRC you wrote a testcase for this, right? Could you please
send us the results of that testing?
Yes, sorry it's a crappy test app but works on 32bit. Timed with prefetch
disabled and then enabled swap prefetch saves ~5 seconds on average hardware
on this one test case. I had many users try this and the results were between
2 and 10 seconds, but always showed a saving on this testcase. This effect
easily occurs on printing a big picture, editing a large file, compressing an
iso image or whatever in real world workloads. Smaller, but much more
frequent effects of this over the course of a day obviously also occur and do
add up.
I'll try this when I get the scheduler stuff done, and also dig out the
"resp1" stuff for "back when." I see the most recent datasets were
comparing 2.5.43-mm2 responsiveness with 2.4.19-ck7, you know I always
test your stuff ;-)
Guess it might need a bit of polish for current hardware, I was testing
on *small* machines, deliberately.
--
Bill Davidsen <[email protected]>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
