From: Xiaoxi Chen <xiaoxchen@ebay.com>
Date: Thu, 16 Feb 2017 03:28:03 +0000 (-0700)
Subject: mds/MDLog.cc Fix perf counter type for jlat
X-Git-Tag: v12.0.1~367^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F13449%2Fhead;p=ceph.git

mds/MDLog.cc Fix perf counter type for jlat

jlat (journal latency) should be PERFCOUNTER_TIME | PERFCOUNTER_LONGRUNAVG
instead of PERFCOUNTER_U64

Current code with PERFCOUNTER_U64 make PerfCounters::tinc return
directly thus jlat will always be zero.

Signed-off-by: Xiaoxi Chen <xiaoxchen@ebay.com>
---

diff --git a/src/mds/MDLog.cc b/src/mds/MDLog.cc
index 87fe65c03fc5..3a864a7a7b53 100644
--- a/src/mds/MDLog.cc
+++ b/src/mds/MDLog.cc
@@ -74,7 +74,7 @@ void MDLog::create_logger()
   plb.add_u64(l_mdl_expos, "expos", "Journaler xpire position");
   plb.add_u64(l_mdl_wrpos, "wrpos", "Journaler  write position");
   plb.add_u64(l_mdl_rdpos, "rdpos", "Journaler  read position");
-  plb.add_u64(l_mdl_jlat, "jlat", "Journaler flush latency");
+  plb.add_time_avg(l_mdl_jlat, "jlat", "Journaler flush latency");
 
   plb.add_u64_counter(l_mdl_replayed, "replayed", "Events replayed");