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2
votes
2answers
135 views

MySQL query times for tuning are different every time

I am tuning SQL query time for my slow query but every time I get different times so I can't evaluate my optimize solution. For example, I run query select * from abc where abc.status in (x,y,z) and ...
0
votes
2answers
91 views

Beyond 1Gb upload on a single linux server

I have a high hit nginx web server on CentOS that provides static large content. when the number concurrent connection are low, server could easily provide up to 4Gb of traffic , but when the number ...
1
vote
0answers
55 views

IRQ not handled by all CPUs

I have a problem about balancing irq. I took irq numbers from /etc/interrupts and assigned each irq to each of 24 CPUs as this tutorial says for i in {143..166};do cat /proc/irq/${i}/smp_affinity; ...
1
vote
0answers
107 views

How Tune the best PostgreSQL for developers not for production?

Developing software on a laptop or a desk computer, what would the best configuration for make sure developers has a fast connections and response. For example a laptop with: 2 cores, 2GB of ram and ...