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