#!/bin/sh CPUS_ONLINE=$(lscpu --online -p=cpu|grep -v -e '#') #use last CPU for host. Why not the first? #many devices tend to use cpu0 by default so #it tends to be busier HOST_AFFINITY=$(echo "${CPUS_ONLINE}"|tail -n 1) #run command on all cpus for cpu in $CPUS_ONLINE do #Don't run guest and host on same CPU #It actually works ok if using signalling if (echo "$@" | grep -e "--sleep" > /dev/null) || \ test $HOST_AFFINITY '!=' $cpu then echo "GUEST AFFINITY $cpu" "$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu fi done echo "NO GUEST AFFINITY" "$@" --host-affinity $HOST_AFFINITY echo "NO AFFINITY" "$@" go' rowspan='2'>cgit logo index : net-next.git
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-08 09:56:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-08 09:56:15 -0800
commit23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b (patch)
tree4aff32d5f2f6fe2f54028bfd4d1b66fdd2f8d281 /tools/perf/builtin-kmem.c
parent926af6273fc683cd98cd0ce7bf0d04a02eed6742 (diff)
parenteeeefd41843218c55a8782a6920f044d9bf6207a (diff)
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe: "A single fix that should go into 4.10, fixing a regression on some devices with the WRITE_SAME command" * 'for-linus' of git://git.kernel.dk/linux-block: block: don't try Write Same from __blkdev_issue_zeroout
Diffstat (limited to 'tools/perf/builtin-kmem.c')