Search found 8 matches

by AikenDrum
Mon Aug 08, 2016 2:01 am
Forum: Technical Support
Topic: PrimoCache + windows cache
Replies: 6
Views: 17677

Re: PrimoCache + windows cache

FILE_FLAG_NO_BUFFERING requires sector-aligned reads and writes. PrimoCache can't really force it because the program making the read is probably not accounting for that restriction.

See: https://msdn.microsoft.com/en-us/librar ... s.85).aspx
by AikenDrum
Wed May 06, 2015 4:23 pm
Forum: Technical Support
Topic: Future Upgrades
Replies: 12
Views: 14509

Re: Future Upgrades

If the dev has gone on a six-month vacation to Fiji and is currently laughing at our silly requests for an update, then perhaps I am upset. However, I am a lonnng -time professional developer myself. I know the idea above is very unlikely. I know that nothing ever goes according to plans or schedule...
by AikenDrum
Sat Jun 28, 2014 12:30 am
Forum: Technical Support
Topic: zero cache hits in games
Replies: 22
Views: 24025

Re: zero cache hits in games

I hate to necropost, but... windows software raid + windows default cache + primocache.... extremely overheading block size... additional firmware-raid running.... running games that read/write files potentially from archived-data-streams .... you really look into this crap of these noobs xD I'm act...
by AikenDrum
Fri Jun 27, 2014 11:36 pm
Forum: Technical Support
Topic: Is the Windows cache off when Primo Cache is on?
Replies: 18
Views: 22436

Re: Is the Windows cache off when Primo Cache is on?

I'm pretty sure it's impossible to disable the Windows read cache. It's used for memory-mapped file I/O, which is a way of saying, "Make this RAM address range mirror what's in this part of the disk," kind of like a reversed virtual memory. Many programs use this, so you simply can't turn ...
by AikenDrum
Fri Aug 16, 2013 5:45 am
Forum: Technical Support
Topic: zero cache hits in games
Replies: 22
Views: 24025

Re: zero cache hits in games

I'm not FlyingCircus, but since I'm also seeing the problem, I'll also answer: Win7 Ultimate x64, 32GiB RAM, socket 2011 3770K CPU, with... Primo Cache 1 is on a Windows-software-striped 1024GB volume (game data, very fast): 12288MiB cache 16KiB blocks LFU-R R/W 10s deferred writeback Primo Cache 2 ...
by AikenDrum
Thu Aug 15, 2013 11:19 pm
Forum: Technical Support
Topic: zero cache hits in games
Replies: 22
Views: 24025

Re: zero cache hits in games

Games may cache internally during a single run, in some cases, but if you exit the game and re-run, it's going to come from disk again (or cache). PrimoCache's own statistics say that game reads are, by and large, not coming from its cache at all in such cases. It would appear that only the .exe its...
by AikenDrum
Thu Aug 15, 2013 2:50 am
Forum: Submit Suggestions
Topic: pre cache frequently used files
Replies: 15
Views: 18392

Re: pre cache frequently used files

... the table of "hot" data could be preserved, thus allowing the cache to be rebuilt much more quickly. As both a dev and a user, this makes the most sense to me. Save the previous state as a hint to rebuild the cache on next startup, but don't save the cache itself. Judging by the "...
by AikenDrum
Thu Aug 15, 2013 2:27 am
Forum: Technical Support
Topic: zero cache hits in games
Replies: 22
Views: 24025

Re: zero cache hits in games

Seeing the same thing with various different games. In a few cases, I see a hundred Kbytes or two getting read from cache, but mostly nothing. It claims it's got the full amount IN the cache, but doesn't report reading from it. Is this a side effect of game programmers using FILE_FLAG_UNBUFFERED mos...