| Server IP : 172.67.134.114 / Your IP : 162.159.115.41 Web Server : Apache/2.4.37 System : Linux almalinux.duckdns.org 4.18.0-553.111.1.el8_10.x86_64 #1 SMP Sun Mar 8 20:06:07 EDT 2026 x86_64 User : ricodeal ( 1046) PHP Version : 7.4.33 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/share/systemtap/examples/network/ |
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title: Increase Initial TCP Congestion Window to 10 name: tcp_init_cwnd.stp version: 1.0 author: anonymous keywords: network tcp socket guru subsystem: network scope: system-wide status: proposed exit: user-controlled output: trace on-exit description: Run the tcp_init_cwnd.stp script in the background to override a kernel's default tcp cwnd value to 10, which has been found to improve latency for web server type workloads. The script prints a count of cwnd value changes when it is stopped. test_check: stap -g -p4 tcp_init_cwnd.stp test_installcheck: stap -g tcp_init_cwnd.stp -T 1