Bug 81785
Summary: | interactive preformance worse than for a long time... | ||
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Product: | [Retired] Red Hat Public Beta | Reporter: | Daniel Resare <noa-bugzilla-redhat> |
Component: | kernel | Assignee: | Arjan van de Ven <arjanv> |
Status: | CLOSED RAWHIDE | QA Contact: | Brian Brock <bbrock> |
Severity: | low | Docs Contact: | |
Priority: | medium | ||
Version: | phoebe | CC: | mitr |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2003-01-15 22:30:16 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 79578 |
Description
Daniel Resare
2003-01-13 23:19:01 UTC
please try the rawhide kernel; we fixed some major interactive response stuff in there... please let me know how that one fares I'm not sure that my rawhide mirror got the latest kernels, but when I try kernel-2.4.20-2.12 it is about as bad as the one shipping with phoebe. As a comparison i did a small test 1) packing up linux-2.4.20.tar.gz with tar 2) start 'make depend' 3) wait for 5 seconds to get the load up 4) switch workspace; reload a fastloading page in mozilla, switch to calendar view in evolution and switch back to a large imap folder. operation 4 takes about 10-15 seconds with kernel-2.4.18-19.8.0 (rh8 errata) but about a minute in both kernel-2.4.20-2.2 and kernel-2.4.20-2.12. During that time lots of klicks are lost and the system is generally very unresponsive. Do you need any more info? unfortunately i cannot reproduce your problems on a similar (slightly weaker) testbox. could you try to run: "nice -n 19 make dep" instead of "make dep" - does that make interactivity much better? This is to make sure it's a scheduler related problem. another thing, does the problem still trigger if you do: make depend >/dev/null 2>/dev/null sometimes the verbose output of 'make depend' loads the X server above a certain level (but this should really not be the case here - you had no problems with other kernels). also, the 2.4.20-2.18 kernel should be available on rawhide, please try it - we made some scheduler related changes since 2.4.20-2.12. 2.4.20-2.18 feels much better, subjectively even better than 2.4.18-x. fyi nice -19 helped. Could you retest the 2.4.20-2.21 kernel, without the nice -19 hack to make dep - is interactivity as good as you'd expect it to be? Just tested 2.4.20-2.21 and it feels snappy. with or without 'nice -19' doesn't make any (noticeable) difference |