install ab command sudo apt install apache2-utils ### configure /etc/sysctl.conf: # Uncomment the next line to enable TCP/IP SYN cookies # See http://lwn.net/Articles/277146/ # Note: This may impact IPv6 TCP sessions too net.ipv4.tcp_syncookies=0 # https://linux.die.net/man/5/proc # https://www.kernel.org/doc/Documentation/sysctl/fs.txt fs.file-max = 6815744 […]
Tag: performance
Make ubuntu or applications run faster
See also https://doc.ubuntu-fr.org/optimisation Check ubuntu startup times systemd-analyze blame /etc/fstab http://www.lgqyc.com/move-tmp-to-ram/ http://jsmylinux.no-ip.org/performance/improving-performance/ http://askubuntu.com/questions/173094/how-can-i-use-ram-storage-for-the-tmp-directory-and-how-to-set-a-maximum-amount http://www.digitalinternals.com/unix/linux-io-performance-tuning-noatime-nodiratime-relatime/388/ mount | grep -P “^tmpfs.+/(tmp|var/run)” sudo du -sh /tmp /var/tmp; du -sh /****/apps/tmp /****/apps/var/run /run/user/id -u /tmp/tomcat 2>/dev/null tmpfs /tmp tmpfs defaults,relatime,mode=1777,size=4G 0 0 tmpfs /var/tmp […]
Test network speed/performance
test performance with iperf from client to server options: -p, –port n set server port to listen to n (default 5001) start server: iperf –format m –interval 2 -s then start client: iperf –format m –interval 2 -t 10 -c […]