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: v15.1.0~2109^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=560fca12e695a817e1b7e46d365838ed871b64bd;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>
---

diff --git a/src/common/options.cc b/src/common/options.cc
index 8f9c899e6ee..548d0c4131c 100644
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -3256,7 +3256,19 @@ 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 67c0834d587..d544d864e6a 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -2699,6 +2699,18 @@ int OSD::get_recovery_max_active()
     return cct->_conf->osd_recovery_max_active_ssd;
 }
 
+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 40b6a07eacd..ca16b27ff5b 100644
--- a/src/osd/OSD.h
+++ b/src/osd/OSD.h
@@ -2118,6 +2118,7 @@ private:
 
   float get_osd_recovery_sleep();
   float get_osd_delete_sleep();
+  float get_osd_snap_trim_sleep();
 
   int get_recovery_max_active();
 
diff --git a/src/osd/PrimaryLogPG.h b/src/osd/PrimaryLogPG.h
index 7ed859780f1..021ca04c4d5 100644
--- a/src/osd/PrimaryLogPG.h
+++ b/src/osd/PrimaryLogPG.h
@@ -1658,10 +1658,11 @@ 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());