Cache miss stampedes
jfbustarret at wat.tv
Thu Jul 26 08:58:53 UTC 2007
> -----Message d'origine-----
> De : dormando [mailto:dormando at rydia.net]
> > You would not need tuning, and the rate of incoming
> requests is not a
> > problem IMHO.
> > - If the rate is very low, one can expect that there won't be any
> > stampede (unless the regeneration code is veeeeeeery slow,
> but this a
> > code tuning problem, and not a caching one)
> > - If the rate is moderate, it works fine
> > - If the rate is very high, I still prefer to 1% of requests
> > regenerating the key instead of 100% one minute later...
> Or do you mean it simply returns a cache miss randomly? I
> guess that'd work.
Yep ! 1% of cache requests will return a cache miss, 99% will return a
cache hit with the data.
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