Bug 4207
Summary: | RFE: nice'd 20 processes don't run unless machine is idle | ||
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Product: | [Retired] Red Hat Linux | Reporter: | helmut katzgraber <dummkopf> |
Component: | kernel | Assignee: | Cristian Gafton <gafton> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 6.0 | CC: | alan |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 1999-09-02 16:18:17 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: |
Description
helmut katzgraber
1999-07-26 23:03:11 UTC
Alan, do you have any idea why intel kernels do not permit nicelevel 20, but the alpha ones do? I'm not sure this is a bug per se, but it is interesting at least. From the man page for nice: DESCRIPTION Run COMMAND with an adjusted scheduling priority. With no COMMAND, print the current scheduling priority. ADJUST is 10 by default. Range goes from -20 (highest priority) to 19 (lowest). If you want the process to have no cpu ticks, try sending the process a SIGSTOP. sure i can a SIGSTOP to the process, but when the CPU is idle it will not run unless i issue a CONT. nicelevel 20 (which is a nice feature on the alphas) instead stops the process if there is others running and restarts it when the cpu is idle. even though the man pages on the alpha distribution coincide with the excerpt you sent me, i still can renice to 20: PID USER PRI NI .... 482 dummkopf 20 20 14584 14M 1296 R N 14M 97.1 2.8 1267m setiathome h. OK, then this is a i386/sparc kernel problem. |