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by __david__
4373 days ago
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> If you turn down swappiness you end up wasting that RAM which could be better used for disk cache. Except the downside of turning swap off is that you (possibly) don't cache your disk as aggressively, but the downside for having too much swap is that ill-behaved programs can grind your entire system to a halt for minutes/hours at a time by having too big of an active dataset. We're talking multiple seconds of latency, where you can't get anything done. For me that's way too big of a downside for gaining a few extra MB of disk cache. I'd rather have it OOM right away. |
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