[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] credit2: performance counter for load balancing call
commit d5c4a55e007db102ee6bd1ac771f0b05458609c2 Author: Praveen Kumar <kpraveen.lkml@xxxxxxxxx> AuthorDate: Wed Jan 25 10:51:47 2017 +0100 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Wed Jan 25 10:51:47 2017 +0100 credit2: performance counter for load balancing call The patch introduces a new performance counter that counts how many times we go through the load balancing logic in Credit2. Signed-off-by: Praveen Kumar <kpraveen.lkml@xxxxxxxxx> Acked-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx> --- xen/common/sched_credit2.c | 2 ++ xen/include/xen/perfc_defn.h | 1 + 2 files changed, 3 insertions(+) diff --git a/xen/common/sched_credit2.c b/xen/common/sched_credit2.c index 2ce738d..b2f2b17 100644 --- a/xen/common/sched_credit2.c +++ b/xen/common/sched_credit2.c @@ -1887,6 +1887,8 @@ retry: (unsigned char *)&d); } + SCHED_STAT_CRANK(acct_load_balance); + /* Look for "swap" which gives the best load average * FIXME: O(n^2)! */ diff --git a/xen/include/xen/perfc_defn.h b/xen/include/xen/perfc_defn.h index 900fddd..0d702f0 100644 --- a/xen/include/xen/perfc_defn.h +++ b/xen/include/xen/perfc_defn.h @@ -57,6 +57,7 @@ PERFCOUNTER(vcpu_hot, "csched: vcpu_hot") /* credit2 specific counters */ PERFCOUNTER(burn_credits_t2c, "csched2: burn_credits_t2c") +PERFCOUNTER(acct_load_balance, "csched2: acct_load_balance") PERFCOUNTER(upd_max_weight_quick, "csched2: update_max_weight_quick") PERFCOUNTER(upd_max_weight_full, "csched2: update_max_weight_full") PERFCOUNTER(migrate_requested, "csched2: migrate_requested") -- generated by git-patchbot for /home/xen/git/xen.git#master _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxx https://lists.xenproject.org/xen-changelog
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