redis pub sub c 实例 redis pub sub 性能 Redis pipeline与Pub/Sub Redis全称是 remote dictionary server ,本质上是一个key value类型的内存数据库,因为是纯内存的操作,Redis的性能非常出色,每秒可以处理超过10万次读写操作。但如果没用好,每秒10万次的读写效率也是发挥不出来的。而管道技术尤为显著提高了 redis...
网上给了一种设置缓冲区大小的设置,可以参考一下。 client-output-buffer-limit pubsub 32mb 8mb 60 #当缓冲区数据达到硬限制32M时,连接会关闭;当缓冲区数据达到软限制每60秒8M时,连接也会关闭。 client-output-buffer-limit pubsub 0 0 0 #可将hard limit和soft limit同时置0,关闭该限制。该操作官方不推荐。
robj*channel){dictEntry*de;//一个channel可以被多个client订阅//一个client可以订阅多个channellist*clients=NULL;intretval=0;/* Add the channel to the client -> channels hash table *///c->pubsub_channels,保存的是一个client订阅的channel列表//将该channel加入到client...
将pubsub订阅通知发送到客户端 void addReplyPubsubSubscribed(client *c, robj *channel) { if (c->resp == 2) addReply(c,shared.mbulkhdr[3]); else addReplyPushLen(c,3); addReply(c,shared.subscribebulk); addReplyBulk(c,channel); addReplyLongLong(c,clientSubscriptionsCount(c)); } /...
The main initializes the pubsub library usingps_init()and creates the thread: ...intmain(void) {ps_init();pthread_tthread;pthread_create(&thread,NULL,subscriber_thread,NULL); } ... Then the main thread subscribes to the"thread.ready"path to listen if the thread has started or not an...
PubNub 也尝试过使用 Go 语言来重写 PubSub(发布/订阅)总线的一部分,但性能远远比不上 C。即使在低负荷下,延迟也立即慢了 10 倍。然后还有 GC 暂停,所以延迟会周期性地突然增加。所以后面换为了 Rust 。 现在,Rust 是 PubNub 最受欢迎的语言,到目前为止,PubNub 所有的新服务通常都选择用 Rust 编写,未来所...
进入到前面教程中创建的dev_ws/src/cpp_pubsub/src目录,并通过输入以下命令下载“说话者”示例代码: 在Linux和macOS操作系统中,命令为: wget -O member_function_with_topic_statistics.cpphttps://raw.githubusercontent.com/ros2/examples/master/rclcpp/topics/minimal_subscriber/member_function_with_topic_statis...
Code Package pubsub implements a simple multi-topic pub-sub library. Install pubsub with, go get github.com/cskr/pubsub/v2 Use of this module is governed by a BSD-style license that can be found in theLICENSEfile. Releases 6tags
Web PubSub Web Search WorkloadsOther Overview CoreUamqp Overview async_ops authentication addressc_uamqp Overview AMQPString AMQPType AMQPValue ArrayValue AsyncOperation BinaryValue BoolValue ByteValue CBSTokenAuth CharValue CompositeValue Connection ConnectionState DescribedValue DictValue DoubleValue FloatValue...
Azure Web PubSub Service Batch Management Služba Batch Fakturace Fakturační výhody Blueprints Optimalizace uhlíkové stopy CDN Chaos Studio Cognitive Services Cognitive Services – Počítačové zpracování obrazu Cognitive Services – Custom Vision Cognitive Services – jazyk Cognitive Services ...