From: Neha Ojha <nojha@redhat.com>
Date: Wed, 26 Jun 2019 01:43:05 +0000 (-0700)
Subject: osd: add hdd, ssd and hybrid variants for osd_snap_trim_sleep
X-Git-Tag: v14.2.3~16^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=987beb96989115276dd1d200e46a21045766156a;p=ceph.git

osd: add hdd, ssd and hybrid variants for osd_snap_trim_sleep

This is better than the earlier default, which was set to 0.

Fixes: https://tracker.ceph.com/issues/40528
Signed-off-by: Neha Ojha <nojha@redhat.com>
(cherry picked from commit 560fca12e695a817e1b7e46d365838ed871b64bd)

Conflicts:
	src/osd/OSD.cc : Resolved for get_osd_snap_trim_sleep
---

diff --git a/src/common/options.cc b/src/common/options.cc
index 7c5b1fb68ce..16fb1144c36 100644
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -3305,7 +3305,19 @@ std::vector<Option> get_global_options() {
 
     Option("osd_snap_trim_sleep", Option::TYPE_FLOAT, Option::LEVEL_ADVANCED)
     .set_default(0)
-    .set_description(""),
+    .set_description("Time in seconds to sleep before next snap trim"),
+
+    Option("osd_snap_trim_sleep_hdd", Option::TYPE_FLOAT, Option::LEVEL_ADVANCED)
+    .set_default(5)
+    .set_description("Time in seconds to sleep before next snap trim for HDDs"),
+
+    Option("osd_snap_trim_sleep_ssd", Option::TYPE_FLOAT, Option::LEVEL_ADVANCED)
+    .set_default(0)
+    .set_description("Time in seconds to sleep before next snap trim for SSDs"),
+
+    Option("osd_snap_trim_sleep_hybrid", Option::TYPE_FLOAT, Option::LEVEL_ADVANCED)
+    .set_default(2)
+    .set_description("Time in seconds to sleep before next snap trim when data is on HDD and journal is on SSD"),
 
     Option("osd_scrub_invalid_stats", Option::TYPE_BOOL, Option::LEVEL_ADVANCED)
     .set_default(true)
diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index 4d255a7c9db..5255cfc843f 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -2845,6 +2845,18 @@ float OSD::get_osd_delete_sleep()
   return cct->_conf.get_val<double>("osd_delete_sleep_hdd");
 }
 
+float OSD::get_osd_snap_trim_sleep()
+{
+  float osd_snap_trim_sleep = cct->_conf.get_val<double>("osd_snap_trim_sleep");
+  if (osd_snap_trim_sleep > 0)
+    return osd_snap_trim_sleep;
+  if (!store_is_rotational && !journal_is_rotational)
+    return cct->_conf.get_val<double>("osd_snap_trim_sleep_ssd");
+  if (store_is_rotational && !journal_is_rotational)
+    return cct->_conf.get_val<double>("osd_snap_trim_sleep_hybrid");
+  return cct->_conf.get_val<double>("osd_snap_trim_sleep_hdd");
+}
+
 int OSD::init()
 {
   CompatSet initial, diff;
diff --git a/src/osd/OSD.h b/src/osd/OSD.h
index 45064392407..dab173c033d 100644
--- a/src/osd/OSD.h
+++ b/src/osd/OSD.h
@@ -2304,6 +2304,7 @@ private:
 
   float get_osd_recovery_sleep();
   float get_osd_delete_sleep();
+  float get_osd_snap_trim_sleep();
 
   void probe_smart(const string& devid, ostream& ss);
 
diff --git a/src/osd/PrimaryLogPG.h b/src/osd/PrimaryLogPG.h
index 70e390ae179..acb1a7e2918 100644
--- a/src/osd/PrimaryLogPG.h
+++ b/src/osd/PrimaryLogPG.h
@@ -1645,10 +1645,11 @@ private:
 	}
       };
       auto *pg = context< SnapTrimmer >().pg;
-      if (pg->cct->_conf->osd_snap_trim_sleep > 0) {
+      float osd_snap_trim_sleep = pg->osd->osd->get_osd_snap_trim_sleep();
+      if (osd_snap_trim_sleep > 0) {
 	std::lock_guard l(pg->osd->sleep_lock);
 	wakeup = pg->osd->sleep_timer.add_event_after(
-	  pg->cct->_conf->osd_snap_trim_sleep,
+	  osd_snap_trim_sleep,
 	  new OnTimer{pg, pg->get_osdmap_epoch()});
       } else {
 	post_event(SnapTrimTimerReady());