optimize curve-client

Author: wu-hanqing

conf/client.conf

@@ -52,7 +52,7 @@ schedule.queueCapacity=1000000
 # 队列取出到发送完rpc请求大概在(20us-100us)，20us是正常情况下不需要获取leader的时候
 # 如果在发送的时候需要获取leader，时间会在100us左右，一个线程的吞吐在10w-50w
 # 性能已经满足需求
-schedule.threadpoolSize=1
+schedule.threadpoolSize=2
 
 # 为隔离qemu侧线程引入的任务队列，因为qemu一侧只有一个IO线程
 # 当qemu一侧调用aio接口的时候直接将调用push到任务队列就返回，
@@ -112,7 +112,7 @@ chunkserver.maxRetryTimesBeforeConsiderSuspend=20
 ################# 文件级别配置项 #############
 #
 # libcurve底层rpc调度允许最大的未返回rpc数量，每个文件的inflight RPC独立
-global.fileMaxInFlightRPCNum=64
+global.fileMaxInFlightRPCNum=128
 
 # 文件IO下发到底层chunkserver最大的分片KB
 global.fileIOSplitMaxSizeKB=64

curve-ansible/roles/generate_config/defaults/main.yml

@@ -169,7 +169,7 @@ client_metacache_get_leader_timeout_ms: 500
 client_metacache_get_leader_retry: 5
 client_metacache_rpc_retry_interval_us: 100000
 client_schedule_queue_capacity: 1000000
-client_schedule_threadpool_size: 1
+client_schedule_threadpool_size: 2
 client_isolation_task_queue_capacity: 1000000
 client_isolation_task_thread_pool_size: 1
 client_chunkserver_op_retry_interval_us: 100000
@@ -183,7 +183,7 @@ client_chunkserver_check_health_timeout_ms: 100
 client_chunkserver_server_stable_threshold: 3
 client_chunkserver_min_retry_times_force_timeout_backoff: 5
 client_chunkserver_max_retry_times_before_consider_suspend: 20
-client_file_max_inflight_rpc_num: 64
+client_file_max_inflight_rpc_num: 128
 client_file_io_split_max_size_kb: 64
 client_log_level: 0
 client_log_path: /data/log/curve/
@@ -198,6 +198,7 @@ nebd_client_rpc_retry_max_inverval_us: 64000000
 nebd_client_rpc_hostdown_retry_inverval_us: 10000
 nebd_client_health_check_internal_s: 1
 nebd_client_delay_health_check_internal_ms: 100
+nebd_client_rpc_send_exec_queue_num: 2
 nebd_client_heartbeat_inverval_s: 5
 nebd_client_heartbeat_rpc_timeout_ms: 500
 nebd_server_heartbeat_timeout_s: 30

curve-ansible/roles/generate_config/templates/nebd-client.conf.j2

@@ -16,6 +16,8 @@ request.rpcHostDownRetryIntervalUs={{ nebd_client_rpc_hostdown_retry_inverval_us
 request.rpcHealthCheckIntervalS={{ nebd_client_health_check_internal_s }}
 # brpc从rpc失败到进行健康检查的最大时间间隔，单位ms
 request.rpcMaxDelayHealthCheckIntervalMs={{ nebd_client_delay_health_check_internal_ms }}
+# rpc发送执行队列个数
+request.rpcSendExecQueueNum={{ nebd_client_rpc_send_exec_queue_num }}
 
 # heartbeat间隔
 heartbeat.intervalS={{ nebd_client_heartbeat_inverval_s }}

curvesnapshot_python/libcurveSnapshot.cpp

@@ -30,11 +30,16 @@
 #include "src/client/client_config.h"
 #include "include/client/libcurve.h"
 #include "src/client/client_common.h"
+#include "src/common/concurrent/concurrent.h"
 
 using curve::client::UserInfo;
 using curve::client::ClientConfig;
 using curve::client::SnapshotClient;
 using curve::client::SnapCloneClosure;
+using curve::client::FileServiceOption;
+using curve::client::ClientConfigOption;
+using curve::common::Mutex;
+using curve::common::ConditionVariable;
 
 class TaskTracker {
  public:
@@ -128,8 +133,8 @@ int Init(const char* path) {
         return -LIBCURVE_ERROR::FAILED;
     }
 
-    FileServiceOption_t fileopt = cc.GetFileServiceOption();
-    ClientConfigOption_t copt;
+    FileServiceOption fileopt = cc.GetFileServiceOption();
+    ClientConfigOption copt;
     copt.loginfo = fileopt.loginfo;
     copt.ioOpt = fileopt.ioOpt;
     copt.metaServerOpt = fileopt.metaServerOpt;

nebd/etc/nebd/nebd-client.conf

@@ -16,6 +16,8 @@ request.rpcHostDownRetryIntervalUs=10000
 request.rpcHealthCheckIntervalS=1
 # brpc从rpc失败到进行健康检查的最大时间间隔，单位ms
 request.rpcMaxDelayHealthCheckIntervalMs=100
+# rpc发送执行队列个数
+request.rpcSendExecQueueNum=2
 
 # heartbeat间隔
 heartbeat.intervalS=5

nebd/src/part1/BUILD

@@ -51,6 +51,7 @@ cc_library(
         "//external:brpc",
         "//nebd/src/common:nebd_common",
         "//nebd/proto:client_cc_proto",
+        "//include:include-common"
     ],
     copts = COPTS,
     linkopts = ["-Wl,-rpath=/usr/lib/nebd"],

nebd/src/part1/nebd_client.cpp

@@ -102,13 +102,31 @@ int NebdClient::Init(const char* confpath) {
 
     heartbeatMgr_->Run();
 
+    // init rpc send exec-queue
+    rpcTaskQueues_.resize(option_.requestOption.rpcSendExecQueueNum);
+    for (auto& q : rpcTaskQueues_) {
+        int rc = bthread::execution_queue_start(
+            &q, nullptr, &NebdClient::ExecAsyncRpcTask, this);
+        if (rc != 0) {
+            LOG(ERROR) << "Init AsyncRpcQueues failed";
+            return -1;
+        }
+    }
+
     return 0;
 }
 
 void NebdClient::Uninit() {
     if (heartbeatMgr_ != nullptr) {
         heartbeatMgr_->Stop();
     }
+
+    // stop exec queue
+    for (auto& q : rpcTaskQueues_) {
+        bthread::execution_queue_stop(q);
+        bthread::execution_queue_join(q);
+    }
+
     LOG(INFO) << "NebdClient uninit success.";
     google::ShutdownGoogleLogging();
 }
@@ -289,67 +307,85 @@ int64_t NebdClient::GetFileSize(int fd) {
 }
 
 int NebdClient::Discard(int fd, NebdClientAioContext* aioctx) {
-    nebd::client::NebdFileService_Stub stub(&channel_);
-    nebd::client::DiscardRequest request;
-    request.set_fd(fd);
-    request.set_offset(aioctx->offset);
-    request.set_size(aioctx->length);
-
-    AioDiscardClosure* done = new(std::nothrow) AioDiscardClosure(
-        fd, aioctx, option_.requestOption);
-    done->cntl.set_timeout_ms(-1);
-    done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
-    stub.Discard(&done->cntl, &request, &done->response, done);
+    auto task = [this, fd, aioctx]() {
+        nebd::client::NebdFileService_Stub stub(&channel_);
+        nebd::client::DiscardRequest request;
+        request.set_fd(fd);
+        request.set_offset(aioctx->offset);
+        request.set_size(aioctx->length);
+
+        AioDiscardClosure* done = new(std::nothrow) AioDiscardClosure(
+            fd, aioctx, option_.requestOption);
+        done->cntl.set_timeout_ms(-1);
+        done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
+        stub.Discard(&done->cntl, &request, &done->response, done);
+    };
+
+    PushAsyncTask(task);
 
     return 0;
 }
 
 int NebdClient::AioRead(int fd, NebdClientAioContext* aioctx) {
-    nebd::client::NebdFileService_Stub stub(&channel_);
-    nebd::client::ReadRequest request;
-    request.set_fd(fd);
-    request.set_offset(aioctx->offset);
-    request.set_size(aioctx->length);
-
-    AioReadClosure* done = new(std::nothrow) AioReadClosure(
-        fd, aioctx, option_.requestOption);
-    done->cntl.set_timeout_ms(-1);
-    done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
-    stub.Read(&done->cntl, &request, &done->response, done);
+    auto task = [this, fd, aioctx]() {
+        nebd::client::NebdFileService_Stub stub(&channel_);
+        nebd::client::ReadRequest request;
+        request.set_fd(fd);
+        request.set_offset(aioctx->offset);
+        request.set_size(aioctx->length);
+
+        AioReadClosure* done = new(std::nothrow) AioReadClosure(
+            fd, aioctx, option_.requestOption);
+        done->cntl.set_timeout_ms(-1);
+        done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
+        stub.Read(&done->cntl, &request, &done->response, done);
+    };
+
+    PushAsyncTask(task);
+
     return 0;
 }
 
 static void EmptyDeleter(void* m) {}
 
 int NebdClient::AioWrite(int fd, NebdClientAioContext* aioctx) {
-    nebd::client::NebdFileService_Stub stub(&channel_);
-    nebd::client::WriteRequest request;
-    request.set_fd(fd);
-    request.set_offset(aioctx->offset);
-    request.set_size(aioctx->length);
+    auto task = [this, fd, aioctx]() {
+        nebd::client::NebdFileService_Stub stub(&channel_);
+        nebd::client::WriteRequest request;
+        request.set_fd(fd);
+        request.set_offset(aioctx->offset);
+        request.set_size(aioctx->length);
+
+        AioWriteClosure* done = new(std::nothrow) AioWriteClosure(
+            fd, aioctx, option_.requestOption);
 
-    AioWriteClosure* done = new(std::nothrow) AioWriteClosure(
-        fd, aioctx, option_.requestOption);
+        done->cntl.set_timeout_ms(-1);
+        done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
+        done->cntl.request_attachment().append_user_data(
+            aioctx->buf, aioctx->length, EmptyDeleter);
+        stub.Write(&done->cntl, &request, &done->response, done);
+    };
 
-    done->cntl.set_timeout_ms(-1);
-    done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
-    done->cntl.request_attachment().append_user_data(
-        aioctx->buf, aioctx->length, EmptyDeleter);
-    stub.Write(&done->cntl, &request, &done->response, done);
+    PushAsyncTask(task);
 
     return 0;
 }
 
 int NebdClient::Flush(int fd, NebdClientAioContext* aioctx) {
-    nebd::client::NebdFileService_Stub stub(&channel_);
-    nebd::client::FlushRequest request;
-    request.set_fd(fd);
-
-    AioFlushClosure* done = new(std::nothrow) AioFlushClosure(
-        fd, aioctx, option_.requestOption);
-    done->cntl.set_timeout_ms(-1);
-    done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
-    stub.Flush(&done->cntl, &request, &done->response, done);
+    auto task = [this, fd, aioctx]() {
+        nebd::client::NebdFileService_Stub stub(&channel_);
+        nebd::client::FlushRequest request;
+        request.set_fd(fd);
+
+        AioFlushClosure* done = new(std::nothrow) AioFlushClosure(
+            fd, aioctx, option_.requestOption);
+        done->cntl.set_timeout_ms(-1);
+        done->cntl.set_log_id(logId_.fetch_add(1, std::memory_order_relaxed));
+        stub.Flush(&done->cntl, &request, &done->response, done);
+    };
+
+    PushAsyncTask(task);
+
     return 0;
 }
 
@@ -473,6 +509,13 @@ int NebdClient::InitNebdClientOption(Configuration* conf) {
     LOG_IF(ERROR, ret != true) << "Load request.rpcMaxDelayHealthCheckIntervalMs failed";  // NOLINT
     RETURN_IF_FALSE(ret);
 
+    ret = conf->GetUInt32Value("request.rpcSendExecQueueNum",
+                               &requestOption.rpcSendExecQueueNum);
+    LOG_IF(ERROR, ret != true)
+        << "Load request.rpcSendExecQueueNum from config file failed, current "
+           "value is "
+        << requestOption.rpcSendExecQueueNum;
+
     option_.requestOption = requestOption;
 
     ret = conf->GetStringValue("log.path", &option_.logOption.logPath);
@@ -564,5 +607,19 @@ void NebdClient::InitLogger(const LogOption& logOption) {
     google::InitGoogleLogging(kProcessName);
 }
 
+int NebdClient::ExecAsyncRpcTask(void* meta,
+                                 bthread::TaskIterator<AsyncRpcTask>& iter) {  // NOLINT
+    if (iter.is_queue_stopped()) {
+        return 0;
+    }
+
+    for (; iter; ++iter) {
+        auto& task = *iter;
+        task();
+    }
+
+    return 0;
+}
+
 }  // namespace client
 }  // namespace nebd

nebd/src/part1/nebd_client.h

@@ -24,10 +24,12 @@
 #define NEBD_SRC_PART1_NEBD_CLIENT_H_
 
 #include <brpc/channel.h>
+#include <bthread/execution_queue.h>
 
 #include <functional>
 #include <string>
 #include <memory>
+#include <vector>
 
 #include "nebd/src/part1/nebd_common.h"
 #include "nebd/src/common/configuration.h"
@@ -36,6 +38,8 @@
 #include "nebd/src/part1/heartbeat_manager.h"
 #include "nebd/src/part1/nebd_metacache.h"
 
+#include "include/curve_compiler_specific.h"
+
 namespace nebd {
 namespace client {
 
@@ -171,6 +175,24 @@ class NebdClient {
     brpc::Channel channel_;
 
     std::atomic<uint64_t> logId_{1};
+
+ private:
+    using AsyncRpcTask = std::function<void()>;
+
+    std::vector<bthread::ExecutionQueueId<AsyncRpcTask>> rpcTaskQueues_;
+
+    static int ExecAsyncRpcTask(void* meta, bthread::TaskIterator<AsyncRpcTask>& iter);  // NOLINT
+
+    void PushAsyncTask(const AsyncRpcTask& task) {
+        static thread_local unsigned int seed = time(nullptr);
+
+        int idx = rand_r(&seed) % rpcTaskQueues_.size();
+        int rc = bthread::execution_queue_execute(rpcTaskQueues_[idx], task);
+
+        if (CURVE_UNLIKELY(rc != 0)) {
+            task();
+        }
+    }
 };
 
 extern NebdClient &nebdClient;

nebd/src/part1/nebd_common.h

@@ -39,6 +39,8 @@ struct RequestOption {
     int64_t rpcHealthCheckIntervalS;
     // brpc从rpc失败到进行健康检查的最大时间间隔
     int64_t rpcMaxDelayHealthCheckIntervalMs;
+    // rpc发送执行队列个数
+    uint32_t rpcSendExecQueueNum = 2;
 };
 
 // 日志配置项

src/chunkserver/clone_manager.cpp

@@ -42,7 +42,7 @@ int CloneManager::Run() {
         return 0;
     // 启动线程池
     LOG(INFO) << "Begin to run clone manager.";
-    tp_ = std::make_shared<TaskThreadPool>();
+    tp_ = std::make_shared<TaskThreadPool<>>();
     int ret = tp_->Start(options_.threadNum, options_.queueCapacity);
     if (ret < 0) {
         LOG(ERROR) << "clone manager start error."