Bug 1282566
Summary: | realtime profile: set unboud workqueues cpumask | ||
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Product: | Red Hat Enterprise Linux 7 | Reporter: | Jan Kurik <jkurik> |
Component: | tuned | Assignee: | Jaroslav Škarvada <jskarvad> |
Status: | CLOSED ERRATA | QA Contact: | Tereza Cerna <tcerna> |
Severity: | unspecified | Docs Contact: | |
Priority: | high | ||
Version: | 7.2 | CC: | bhu, daolivei, hhuang, jeder, jscotka, jskarvad, juzhang, lcapitulino, mnavrati, tcerna, tlavigne, xfu |
Target Milestone: | rc | Keywords: | ZStream |
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | tuned-2.5.1-4.el7_2.1 | Doc Type: | Enhancement |
Doc Text: |
With this update, the cpumask of unbound workqueueus is set to the list of non-isolated cores in the "tuned" realtime profiles, as Red Hat Enterprise Linux and Real Time kernels now support setting the cpumask of unbound workqueues in sysfs.
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Story Points: | --- |
Clone Of: | 1259043 | Environment: | |
Last Closed: | 2015-12-08 10:40:57 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: | 1259043 | ||
Bug Blocks: |
Description
Jan Kurik
2015-11-16 18:31:13 UTC
=============================== Verified in: tuned-2.5.1-4.el7_2.1.noarch PASS =============================== There is new row with workqueue/cpumask in configuration file of realtime profile: $ cat /usr/lib/tuned/realtime/tuned.conf ... [sysfs] /sys/bus/workqueue/devices/writeback/cpumask = ${not_isolated_cpumask} /sys/devices/virtual/workqueue/cpumask = ${not_isolated_cpumask} /sys/devices/system/machinecheck/machinecheck*/ignore_ce = 1 ... Content of /sys/devices/virtual/workqueue/cpumask is set to new value after activating realtime: $ tuned-adm profile balanced $ cat /sys/devices/virtual/workqueue/cpumask ffff,ffffffff,ffffffff $ tuned-adm profile realtime $ cat /sys/devices/virtual/workqueue/cpumask 0000,00000000,ffffff0b $ =============================== Reproduced in: tuned-2.5.1-4.el7.noarch FAIL =============================== $ cat /usr/lib/tuned/realtime/tuned.conf ... [sysfs] /sys/bus/workqueue/devices/writeback/cpumask = ${not_isolated_cpumask} /sys/devices/system/machinecheck/machinecheck*/ignore_ce = 1 ... $ tuned-adm profile balanced $ cat /sys/devices/virtual/workqueue/cpumask ffff,ffffffff,ffffffff $ tuned-adm profile realtime $ cat /sys/devices/virtual/workqueue/cpumask ffff,ffffffff,ffffffff $ Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2015-2570.html |