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Meta
Monthly Archives: April 2019
Linux – Network settings for high traffic generating application
/etc/sysctl.conf CENT OS example # default socket memory buffer per a socker net.core.wmem_default=131072(128KB) net.core.rmem_default=131072(128KB) # max socker memory buffer per a socker net.core.wmem_max=2097152(2MB) net.core.rmem_max=2097152(2MB) # tcp buffer size (min, default, max) 4KB, 64KB, 2MB net.ipv4.tcp_wmem=4096 65536 2048000 # enable TCP … Continue reading
Posted in Linux, Programming
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Websocket protocol details
Websocket protocol details. http://lucumr.pocoo.org/2012/9/24/websockets-101/
Posted in Programming, Web
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Java – JVM monitoring tool
It is an amazing tool to monitor Java application such as thread cpu usage etc. https://github.com/aragozin/jvm-tools
Posted in Java, Programming
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Python – Spelling correction (Python examples on list comprehension)
It’s worth to read Python code as examples of using list comprehension semantics. http://norvig.com/spell-correct.html
Posted in Programming, python
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