From: xinxin shu <xinxin.shu@intel.com>
Date: Thu, 23 Jul 2015 00:51:56 +0000 (+0800)
Subject: use throttle framework to throttle ops/bytes for filestore
X-Git-Tag: v9.1.0~375^2~3
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=e4fd086d82dbaa356e600dfdeae52ccd83012ffe;p=ceph.git

use throttle framework to throttle ops/bytes for filestore

Signed-off-by: xinxin shu <xinxin.shu@intel.com>
---

diff --git a/src/common/Throttle.h b/src/common/Throttle.h
index 4a3962beca3d..ae09a04fe6f0 100644
--- a/src/common/Throttle.h
+++ b/src/common/Throttle.h
@@ -100,6 +100,9 @@ public:
    * @returns number of requests being hold after this
    */
   int64_t put(int64_t c = 1);
+  bool should_wait(int64_t c) const {
+    return _should_wait(c);
+  }
 };
 
 
diff --git a/src/os/FileStore.cc b/src/os/FileStore.cc
index a9f4470e140f..0e771747b609 100644
--- a/src/os/FileStore.cc
+++ b/src/os/FileStore.cc
@@ -524,8 +524,8 @@ FileStore::FileStore(const std::string &base, const std::string &jdev, osflagbit
   fdcache(g_ceph_context),
   wbthrottle(g_ceph_context),
   default_osr("default"),
-  op_queue_len(0), op_queue_bytes(0),
-  op_throttle_lock("FileStore::op_throttle_lock"),
+  throttle_ops(g_ceph_context, "filestore_ops",g_conf->filestore_queue_max_ops),
+  throttle_bytes(g_ceph_context, "filestore_bytes",g_conf->filestore_queue_max_bytes),
   op_finisher(g_ceph_context),
   op_tp(g_ceph_context, "FileStore::op_tp", g_conf->filestore_op_threads, "filestore_op_threads"),
   op_wq(this, g_conf->filestore_op_thread_timeout,
@@ -1789,7 +1789,7 @@ void FileStore::queue_op(OpSequencer *osr, Op *o)
   dout(5) << "queue_op " << o << " seq " << o->op
 	  << " " << *osr
 	  << " " << o->bytes << " bytes"
-	  << "   (queue has " << op_queue_len << " ops and " << op_queue_bytes << " bytes)"
+	  << "   (queue has " << throttle_ops.get_current() << " ops and " << throttle_bytes.get_current() << " bytes)"
 	  << dendl;
   op_wq.queue(osr);
 }
@@ -1809,41 +1809,32 @@ void FileStore::op_queue_reserve_throttle(Op *o, ThreadPool::TPHandle *handle)
   logger->set(l_os_oq_max_bytes, max_bytes);
 
   utime_t start = ceph_clock_now(g_ceph_context);
-  {
-    Mutex::Locker l(op_throttle_lock);
-    while ((max_ops && (op_queue_len + 1) > max_ops) ||
-           (max_bytes && op_queue_bytes      // let single large ops through!
-	      && (op_queue_bytes + o->bytes) > max_bytes)) {
-      dout(2) << "waiting " << op_queue_len + 1 << " > " << max_ops << " ops || "
-	      << op_queue_bytes + o->bytes << " > " << max_bytes << dendl;
-      if (handle)
-	handle->suspend_tp_timeout();
-      op_throttle_cond.Wait(op_throttle_lock);
-      if (handle)
-	handle->reset_tp_timeout();
-    }
+  if (handle)
+    handle->suspend_tp_timeout();
+  if (throttle_ops.should_wait(1) || 
+    (throttle_bytes.get_current()      // let single large ops through!
+    && throttle_bytes.should_wait(o->bytes))) {
+    dout(2) << "waiting " << throttle_ops.get_current() + 1 << " > " << max_ops << " ops || "
+      << throttle_bytes.get_current() + o->bytes << " > " << max_bytes << dendl;
+  }
+  throttle_ops.get();
+  throttle_bytes.get(o->bytes);
+  if (handle)
+    handle->reset_tp_timeout();
 
-    op_queue_len++;
-    op_queue_bytes += o->bytes;
-  }
   utime_t end = ceph_clock_now(g_ceph_context);
   logger->tinc(l_os_queue_lat, end - start);
 
-  logger->set(l_os_oq_ops, op_queue_len);
-  logger->set(l_os_oq_bytes, op_queue_bytes);
+  logger->set(l_os_oq_ops, throttle_ops.get_current());
+  logger->set(l_os_oq_bytes, throttle_bytes.get_current());
 }
 
 void FileStore::op_queue_release_throttle(Op *o)
 {
-  {
-    Mutex::Locker l(op_throttle_lock);
-    op_queue_len--;
-    op_queue_bytes -= o->bytes;
-    op_throttle_cond.Signal();
-  }
-
-  logger->set(l_os_oq_ops, op_queue_len);
-  logger->set(l_os_oq_bytes, op_queue_bytes);
+  throttle_ops.put();
+  throttle_bytes.put(o->bytes);
+  logger->set(l_os_oq_ops, throttle_ops.get_current());
+  logger->set(l_os_oq_bytes, throttle_bytes.get_current());
 }
 
 void FileStore::_do_op(OpSequencer *osr, ThreadPool::TPHandle &handle)
diff --git a/src/os/FileStore.h b/src/os/FileStore.h
index 2eb58fc39372..b28652aaa48b 100644
--- a/src/os/FileStore.h
+++ b/src/os/FileStore.h
@@ -332,9 +332,7 @@ private:
 
   Sequencer default_osr;
   deque<OpSequencer*> op_queue;
-  uint64_t op_queue_len, op_queue_bytes;
-  Cond op_throttle_cond;
-  Mutex op_throttle_lock;
+  Throttle throttle_ops, throttle_bytes;
   Finisher op_finisher;
 
   ThreadPool op_tp;