Saturday, February 25, 2017

Awk vs gawk vs ruby benchmark.

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The input file contains lines start with a number or anything else. When a start with a number, it only contains 2 numbers space separated. ...
Sunday, February 5, 2017

Block device tester

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I made this script to test block devices. First argument is the block device to test. #! /usr/bin/ruby # Will quit in case some corrupt b...
Sunday, November 20, 2016

ruby vs bash benchmark (loops comparison).

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Bash relies highly on external commands which make it having a lot of overheads; it's the language of the command line, not a proper pro...
Thursday, November 17, 2016

nginx+fail2ban tutorial/document.

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fail2ban + Nginx In this system fail2ban is supposed to parse nginx logs (customized) for 404 and 403 status codes and add...
Sunday, November 13, 2016

HTTRACK 'pasues' from time to time when mirroring.

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Tired of this behaviour? No solution on the Internet? Mirroring progress slows down? Try switch -C0 or -C1. With -C0, you wont be able to ...
Saturday, August 20, 2016

Linux veth device benchmark with high and low mtu.

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Veth devices where created -- ip link add name tstveth mtu 65535 type veth peer name tstveth0 mtu 65535 65535 is the highest MTU these d...
Wednesday, April 13, 2016

Enable electrolsys/e10s/multiprocessing on Firefox 45/ESR

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Open "about:config" in the URL bar. Search for "browser.tabs.remote.autostart" and set it to true , then restart. Th...
Tuesday, March 29, 2016

Apache vs Nginx benchmark/How to make Apache faster than Nginx.

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Unlike other benchmarks, both Apache and and Nginx have been tuned for best performance for the task they're doing (ser...