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
Search found 8 matches
- Mon Aug 08, 2016 2:01 am
- Forum: Technical Support
- Topic: PrimoCache + windows cache
- Replies: 6
- Views: 17677
- 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...
- 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...
- 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 ...
- 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 ...
- 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...
- 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 "...
- 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...