TCP converts transmitted data into packets (and back again when they're received) and ensures those packets are reliably delivered and reassembled in the same order in which they were sent. Application: Equivalent to the Session, Presentation, and Application layers in the OSI model. Well-known...
Step 2: Then a TCP or a UDP header is added to the data. It is encapsulated into TCP segments at the transport layer. The header contains the source port, destination port, and sequence number. Step 3: The segments are then encapsulated with an IP header at the network layer. The IP ...
分析工具之二pt-query-digest pt-query-digest是用于分析mysql慢查询的一个工具,它可以分析binlog、General log、slowlog,也可以通过SHOWPROCESSLIST或者通过tcpdump抓取的MySQL协议数据来进行分析。可以把分析结果输出到文件中,分析过程是先对查询语句的条件进行参数化,然后对参数化以后的查询进行分组统计,统计出各查询的...
1. 增加TCP支持的队列数 net.ipv4.tcp_max_syn_backlog=65535 2. 减少断开连接时间,资源回收,由于TCP/IP是有三个状态的,为了加快timewait状态回收,优化以下参数。net.ipv4.tcp_max_tw_buckets=8000 net.ipv4.tcp_tw_reuse=1 net.ipv4.tcp_tw_recycle=1 net.ipv4.tcp_fin_timeout=10 1. 2. 3. 4.1...
After this data, it is a list of IMAGE_SECTION_HEADER, each of which describes the details of the next paragraph in detail. Next, it is the most important section of data in the PE file, where information about execution code, data, and resources is stored separately in these segments. ...
Benefrancis / system-design-101 Public forked from ByteByteGoHq/system-design-101 Notifications You must be signed in to change notification settings Fork 0 Star 0 Explain complex systems using visuals and simple terms. Help you prepare f...
Step 1: When Device A sends data to Device B over the network via the HTTP protocol, it is first added an HTTP header at the application layer. Step 2: Then a TCP or a UDP header is added to the data. It is encapsulated into TCP segments at the transport layer. The header contains...