RASP probe H - please ignore delete me
Getwebup
1 min read
Probe.
2>Cause: What Actually Drives Disk I/O WaitA handful of things repeatedly cause this on shared or budget VPS instances:
- Swap thrashing. If RAM is tight and the kernel starts swapping pages to disk under memory pressure, every process touching swapped memory now waits on disk reads. This is the single most common cause on 1-2GB VPS plans running MySQL and PHP-FPM together.
- A backup or file-scan job running during peak hours.
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