Andrey Falko wrote:
On Thu, Mar 6, 2008 at 10:38 PM, fire-eyes <[EMAIL PROTECTED]> wrote:
Hello,
I'm running gentoo on an IBM Thinkpad T43. In the past, disk access was
fine under load (CPU or disk). These days, the disk becomes painfully
slow under moderate to high CPU usage (such as compiling) or copying
more than a few MB. GUI's become almost totally unresponsive and at
times I have to down the system hard.
So it seems it's some sort of a change in kernels compared to the past.
I have always run a vanilla kernel, manually configured and installed.
Right now I am running 2.6.24.3.
The system uses an SATA disk drive.
Here is the boot line in grub.conf:
kernel /boot/vmlinuz-stable root=/dev/sda4 rw hdc=noprobe
acpi_sleep=s3_bios panic=5 elevator=cfq nmi_watchdog=0
/boot/vmlinuz-stable being a symlink to the kernel I consider "stable"
within /boot/. I also have vmlinuz-last called by another grub entry if
I need it.
Here is my kernel config: http://fire-eyes.org/t/config-2.6.24.3.txt
(may disappear in the future)
I am looking for feedback into what may be causing this mess. It makes
for a very frustrating time using this laptop.
What is the version of the kernel where you did not have issues?
2.6.24 and 23 have a new CPU scheduler (CFS), which "should" work
better than the old one. It is possible that the new scheduler does
not suit your needs.
Thanks for the reply.
I do not recall, other than it was four or more months ago. Do you
happen to know what version of the kernel that scheduler showed up in?
Also, is that scheduler not irrelevant here as I was passing elevator=cfq?
By the way, I did a little experimentation. I changed my scheduler to
deadline, and set preemption to desktop. Before the scheduler was cfq,
and the preemption to low-latency desktop.
Things already feel snappier gui-wise, but I have yet to push the
disk/cpu to see what will happen. I believe it is at least the start of
improvements, however.
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