Friday, May 1, 2026

How to Troubleshoot CPU,I/O,Memory,Network in Linux.

  • Debug high CPU → toppidstat -ustrace
  • Debug high I/O → iotopiostat
  • Debug memory leak → topsmempmap
  • Debug network → sstcpdumpcurl -v
  • DNS issues → dig/etc/resolv.conf
  • System slow → check: dmesgjournalctl, load average.

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