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How can you troubleshoot a slow server response time? My server performance is deteriorating so fastly. I've tried fixing server software and configurations. Also checked with network connectivity. It seems there is no issue. Could you please help me?

Gary Hines
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    What server? How do you measure performance? How is it configured? As it stands it is too general to get relevant answers. – vidarlo Apr 26 '23 at 14:41

2 Answers2

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Check CPU: top or htop

Check proceses: ps -auxf

Memory: free -m

Iops: iotop -oPa

Install nmon and nload

Check IO/Wait: iostat -m 2 and iostat -xm 2

Tuning filesystem (noatime)

Tuning sysctl.conf

Uses: Apachebuddy

Uses: MySQLTunner

Tuning PHP

strace

lsof -p

vmstat

stat

Check hardrive: smartmontools

Check: sudo hdparm -I /dev/sda and sudo hdparm -tT /dev/sda and sudo hdparm -I /dev/sda | grep -i speed

And BIOS/UEFI configuration... Uses Dell Server? Memory Operation Mode? Snoop Mode? Supermicro? Gigabyte? Quanta Server?

Network velocity in Gigabps?

Check disk velocity: dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync

RAID Monitoring?

cat /proc/mdstat

cat /proc/mdstat

mdadm -D /dev/md1

mdadm -D /dev/md0

MAILADDR info@my-email.com

./mdadm --monitor --mail=root@localhost --syslog --delay=300 /dev/md0 --daemonise

Nando
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  • in gernally not a bad answer, but it needs supporting information, specially for the tuning part and a hint that it could break things or even in more worse conditions destroy – djdomi Apr 26 '23 at 15:32
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Have you tried to add it to monitoring system like 'zabbix 'to get overviwe of it's performance ? Check CPU, Memory, Iops, Netowrk Traffic. Each one of those matrices can make your server slower.

aalmarshad
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