Re: L2 Cache Not Used When Needed
Posted: Tue Jan 22, 2019 7:20 am
I haven't tried that - it's a good idea. I'll also try to trigger this with ordinary activity (like copying files) without the app running at all.
I have been able to determine with high likelihood that the problem is triggered by a burst of uncached reading activity from the same underlying drive. If I can confirm this, it should be possible to solve it by activating a read cache as well. So far I've gotten around the problem by artificially limiting the input to the app which, in turn, limits the read activity.
Could you tell me what causes PrimoCache to make writes urgent? Under normal circumstances (no sign of thrashing) I get only about 1% urgent writes, which makes me wonder about this.
Re. sending the app, it's not mine and it would be complicated, but if this persists with no other clues I'll try to figure something out.
Thanks.
I have been able to determine with high likelihood that the problem is triggered by a burst of uncached reading activity from the same underlying drive. If I can confirm this, it should be possible to solve it by activating a read cache as well. So far I've gotten around the problem by artificially limiting the input to the app which, in turn, limits the read activity.
Could you tell me what causes PrimoCache to make writes urgent? Under normal circumstances (no sign of thrashing) I get only about 1% urgent writes, which makes me wonder about this.
Re. sending the app, it's not mine and it would be complicated, but if this persists with no other clues I'll try to figure something out.
Thanks.