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linux perf checklist
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| uptime | |
| dmesg | tail | |
| vmstat 1 | |
| mpstat -P ALL 1 | |
| pidstat 1 | |
| iostat -xz 1 | |
| free -m | |
| sar -n DEV 1 | |
| sar -n TCP,ETCP 1 | |
| execsnoop | |
| opensnoop | |
| zfsslower | |
| biolatency | |
| biosnoop | |
| cachestat | |
| tcpconnect | |
| tcpaccept | |
| tcpretrans | |
| runqlat | |
| profile |
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