May 26, 2023
Porady Admina: vmstat
W dzisiejszym wpisie z cyklu Porady Admina zajmiemy się programem vmstat https://linuxiarze.pl/porady-admina-procps-vmstat/
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Porady Admina: vmstat
W dzisiejszym wpisie z cyklu Porady Admina zajmiemy się programem vmstat https://linuxiarze.pl/porady-admina-procps-vmstat/
Resolved: How would you interpret the following vmstat output? #dev #it #computers
Resolved: How would you interpret the following vmstat output? #dev #it #computers
How would you interpret the following vmstat output?
Consider the following five machines (named c, h, j, s and u) and their respective vmstat 1 outputs.
Given the information from the vmstat output:
Which machines would you consider being in a good shape? Why? What’s your reasoning?
Which machines would you consider being in a bad shape? Why? What’s your reasoning? How would you go about fixing…
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Answer: Performance Tuning a High-Load Apache Server #answer #computers #development
Answer: Performance Tuning a High-Load Apache Server #answer #computers #development
Performance Tuning a High-Load Apache Server
I am looking to understand some server performance problems I am seeing with a (for us) heavily loaded web server. The environment is as follows:
Debian Lenny (all stable packages + patched to security updates)
Apache 2.2.9
PHP 5.2.6
Amazon EC2 large instance
The behavior we’re seeing is that the web typically feels responsive, but with a slight delay…
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Solution: Performance Tuning a High-Load Apache Server #programming #it #fix
Solution: Performance Tuning a High-Load Apache Server #programming #it #fix
Performance Tuning a High-Load Apache Server
I am looking to understand some server performance problems I am seeing with a (for us) heavily loaded web server. The environment is as follows:
Debian Lenny (all stable packages + patched to security updates)
Apache 2.2.9
PHP 5.2.6
Amazon EC2 large instance
The behavior we’re seeing is that the web typically feels responsive, but with a slight delay…
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How to: How to get % memory usage with vmstat? #solution #development #it
How to: How to get % memory usage with vmstat? #solution #development #it
How to get % memory usage with vmstat?
I need to get a memory usage in % from vmstat, but I don’t quite understand some of the numbers relating to memory displayed in vmstat.
In particular, given an output like this
procs -memory -swap -io system -cpu r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 139728 45396 199128 1236360 1 2 4 622 3 1 51 4 43 2 0
What is the amount of total…
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sar/sysstat
http://www.thegeekstuff.com/2011/03/sar-examples/
http://linuxhostingsupport.net/blog/tag/list-high-cpu-usage-processes
http://www.thegeekstuff.com/2011/07/iostat-vmstat-mpstat-examples/
Linux InActive Memory
Uzun süredir çalışmadığı halde hafızada yer tutan işlemlerin hafızadan silinmesi:
vmstat -s komutuyla inactive olmuş olan processlerin hafızada ne kadar yer kapladığını görebilirsiniz.
Eğer bu benim başıma geldiği gibi GB'ları geçmiş ise aşağıdaki komut dizisiyle bu processleri hafızadan silebilirsiniz.
free && sync && echo 3 > /proc/sys/vm/drop_caches && echo "" && free