http://bugzilla.opensuse.org/show_bug.cgi?id=1112824
http://bugzilla.opensuse.org/show_bug.cgi?id=1112824#c102
--- Comment #102 from Takashi Iwai ---
Quickly looking at the logs of comment 97, the main differences between two
kernel configs are:
CONFIG_NO_HZ_FULL=y for Fedora
CONFIG_NO_HZ_IDLE=y for TW
CONFIG_PREEMPT_VOLUNTARY=y for Fedora
CONFIG_PREEMPT=y for TW
CONFIG_SCHED_AUTOGROUP=y for Fedora
CONFIG_SCHED_AUTOGROUP=n for TW
CONFIG_SLUB=y for Fedora
CONFIG_SLAB=y for TW
The last one is unlikely influencing on the performance, though.
The rest are subtle drivers and debugging configs.
So I'm building a TW kernel with the config changes above to follow Fedora in
OBS home:tiwai:bsc1112824 repo. The build should finish in an hour or so.
Please give it a try and see whether if this really improves things as
advertised here.
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