Re: Default cache_hot_time value back to 10ms

[Albert Cahalan]

Con Kolivas writes:

> Should it not be based on the cache flush time? We measure
> that and set the cache_decay_ticks and can base it on that.

Often one must use the time, but...

If the system goes idle for an hour, the last-run
process is still cache-hot.

Many systems let you measure cache line castouts.
Time is a very crude approximation of this.
Memory traffic is a slightly better approximation.


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