Romex Software Forum

Hi, I have problem with prefetch. Sometime ago I requested that prefetch of the same physical drive don't happen on the same time to speed it up. In 3.0.2 that's not only not fixed, but it got worse. I have 2 partitions cached C: and E: of the same hard disk. C: is set to start prefetch at windows b...

Does L1 write cache actually do anything if it's not deferred? Does it really speed up anything if it has to write the cache to disk right away. Isn't that the same as if there is no write cache?

I fixed the problem. The partition was copied 1:1 from an SSD. It has been on the SSD for ages, so it got very fragmented. When I copied it to a HDD booting got so slow that it was past the delay of prefetching. Defragmenting fixed it. Now booting stops before prefetch starts.

Hi, Does primocache have an algorithm to reduce penalty of big files that are read only once or full hdd backups? In such case does primocache preserves most commonly used cache? If not you might want to implement something like ARC . In fewer words arc is divided to two sections - one for recently ...

The SSD is not loosing cache. The SSD itself is disappearing, which is hard disk problem not primocache. The problem I have is with prefetch kicking in the wrong moment, while OS still haven't finished loading. If you have a lot of ram and slow hard disk the OS loading time is bigger and it overlaps...

Hi, My SSD died and I've put an old 160 GB HDD for main OS temporarily while I wait for warranty service. The old hdd is terribly slow, especially when seeking. I'm using smaller SSD for L2 cache. I have this problem that prefetch takes forever if L2 cache is not present. I waited 10-20 minutes afte...

I noticed that prefetch is fast on SSD, but quite slow on spinning disk even though there is big 60 GB SSD L2 cache. Shouldn't (almost) all the prefetch be already on the SSD?

Thank you!

PrimoCache version:2.7.0 Cache Settings: Task 1 - SSD-C: 6GB L1cache read only 4 kb block prefetch enabled task 2: SSD-D:, HDD-E: 4 GB L1 cache read only 20 GB L2 on the SSD 16kb block Task 3 - HDD-T: (used for system temp folders) 512 BM read/write cache with 300s deffer write Windows OS: Windows ...

well, making primocache filesystem-aware will open a lot of doors. I would be glad to be able to set rules for how files are cached. Currently I have troubles when watching movies - firstly they override the important cache (I want to exclude them from the cache) and sencondly they write a lot of da...