Re: VFS sysctl tuning ... My RAID controller, an Areca ARC-1220, has a 256MB cache and each disk has 16MB of cache. ...tuning generally means trading off one type of performance or functionality for another. ... Only by knowing the workload can we talk about how to trade off what you need, ... (freebsd-performance)
Re: Loosing data after (W2K pro) shutdown ... after some research I think that I got a few more clues....cache is another cache which the OS has no control over? ... > because the VIA RAID controller can operate in the HDD's UDMA6 ... > option in the disk properties (in Device Manager).... (microsoft.public.win2000.hardware)
Re: Cache Hit Ratio from system views ... If it rises above a certain ... "The buffer cache hit ratio can be used to verify the physical I/O as ... are even as we write in the relevant section of the performance tuning... I've found the cache advice useful as a gross ballpark ... (comp.databases.oracle.server)
Re: Problems with Dell (Memory and CPU) ... memory is taken as cache or even for the RAID controller.... It could be you have a Memory RAID?... On some OS's the "Hyperthreading" feature can be of a disadvantage, as the OS has a problem using both processors. ... The problem with Dual core processors, is that they use the samecache.... (linux.redhat)
Re: When I COMMIT.... ...Database server with non-battery backed cache on the RAID controller,... Oracle would be told that the committed data was flushed from ... (comp.databases.oracle.server)
