While monitoring a http/php server, I needed to do some statistics about php-cgi memory usage. Playing with memory_limit in PHP, we wanted to know the average memory usage per php-cgi process. This is easily calculated with our best friend awk. First, get the number of php running processes: # ps aux | grep php-cgi | …
Benchmarks
Benchmark disk IOs
While reading this interresting article on benchmarking disks, Benjamin Schweizer pointed out a link to a python tool he wrote: benchmark disks IOs. I made a try on different available servers. Server 1 PowerEdge 2950 – Intel(R) Xeon(R) CPU 5160 @ 3.00GHz Dell PowerEdge Expandable RAID controller 5 (LSI Logic SAS based MegaRAID driver, PERC …