Search found 87 matches
- Mon Jun 04, 2012 5:22 pm
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
In theory if an SSD/L2 is being used as the write cache, the non-volatile nature would much improve the situation. In the event of powerfailure/crash, after reboot, the system could notice writes in L2 that had not been flushed to disk yet. Dangerous since the boot process before FC is loaded could...
- Sat Jun 02, 2012 10:18 pm
- Forum: Bug Report and Suggestion
- Topic: repopulate/proactive level 1 cache
- Replies: 7
- Views: 7142
Re: repopulate/proactive level 1 cache
I would like the option of "infinite latency", even if it is not repopulated after a reboot. My data is all distributed computing work that just overwrites old data with new data having the same set of file names, and I normally don't need to flush it at all. You have a very interesting w...
- Sat Jun 02, 2012 9:58 pm
- Forum: Bug Report and Suggestion
- Topic: Instead of caching software, why not make a hybrid setup?
- Replies: 2
- Views: 3672
Instead of caching software, why not make a hybrid setup?
Regarding this video and a few more following that: http://www.youtube.com/watch?v=DBFoz_xxVvc&list=UUb4Q8Xgv55ug0UyuFbSCxtw&index=4&feature=plcp They were talking about how SSD should be used as a caching or used as a tier. They make some good points all around on both sides. They bring...
- Thu May 31, 2012 6:51 pm
- Forum: Technical Support
- Topic: worst performance with Fc vs without when data not in cache
- Replies: 6
- Views: 6445
Re: worst performance with Fc vs without when data not in ca
side note: setting cluster=block (4k in this case) and 1GB level 1 cache, wastes a lot or ram. I went from 1.2GB used to 5-6GB used. I had to set block=512KB to stay about a 1GB for level 1 cache. No way I'm robing windows intelligent/proactive/dynamic cache system (prefetch, superfetch, etc) from ...
- Thu May 31, 2012 6:41 pm
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
In theory if an SSD/L2 is being used as the write cache, the non-volatile nature would much improve the situation. In the event of powerfailure/crash, after reboot, the system could notice writes in L2 that had not been flushed to disk yet. However given that L2 isn't persistent in FancyCache yet, ...
- Wed May 30, 2012 2:22 pm
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
I say we use the NTFS Change Journal system then. It would force the use of the NTFS, but most users running windows are already using it for trim support, and/or dual booting linx to have a common ground between the two. If anything, it would just be an "add on" that users would be able t...
- Wed May 30, 2012 12:08 am
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
I was aware of the write issues actually - I'm ignoring write caching. I've always assumed FC was ignoring flushes to get great write performance. I don't think I would trust defer writes. Not sure I follow what you mean here. Indexing isn't really used all that much unless you do a lot of searches...
- Tue May 29, 2012 11:16 pm
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
I see. I just found the time to look it up. Looks perty cool actully. The file system will update the journal per write/change. It seem like it would work ^^ Tho we still would have to see if it works in offline mode and this again forces the use of the NTFS wtich means we're moving up from the bloc...
- Tue May 29, 2012 8:50 pm
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
I was only half serious about the Filesystem part. That would simply be the cleanest solution - caching built right in. Obviously the work involved would mostly outweigh the gains. Personally I am OK with not-100% solutions at home as long as the error cases are fully disclosed. lol I know. It woul...
- Tue May 29, 2012 9:42 am
- Forum: Bug Report and Suggestion
- Topic: What the people are asking for + a few others.
- Replies: 41
- Views: 61347
Re: What the people are asking for + a few others.
The only danger to this is that if data was changed in "off line mode" then FC might return the wrong data. I question what they mean by that along side that fact when and why data would change in "off line mode," "offline mode" likely just refers to any time a disk is...