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Pastimes : Dream Machine ( Build your own PC ) -- Ignore unavailable to you. Want to Upgrade?

To: Clarence Dodge who wrote (2367)	9/8/1998 12:17:00 PM
From: Howard R. Hansen	Respond to of 14778

>>I was curious about how cache is used in real-time streaming data. Maybe someone else knows.<< My first reaction is the streaming data should not be stored in cache. It is the instructions that control your serial port, download data and are repeatedly executed that should be stored in cache. Hopefully a guru will come along and give us a better answer.

To: Clarence Dodge who wrote (2367)	9/8/1998 12:32:00 PM
From: Street Walker	Read Replies (1) \| Respond to of 14778

system performance - Ram usage I clicked on the following sequence: My computer Control panel System Performance on 64 ram, I'm using 65% using two monitors. One monitor is running IE, the other is running 5 Kill Key's and the Java Trader. S.W.

To: Clarence Dodge who wrote (2367)	9/8/1998 1:02:00 PM
From: Spots	Read Replies (2) \| Respond to of 14778

>>curious about how cache is used in real-time streaming data. The processor cache (L1 and L2) buffer memory accesses. Depending on the pattern of access, they can make effective memory speeds several times faster than actual memory speeds. Streaming data or anything else that enters memory will be stored in cache. If it is referenced again soon enough, it will be fetched from cache rather than from main memory. Since disk I/O is itself "cached" by the OS in memory, and this memory is subject to processor caching, even if the streaming data is written to disk then refetched "from disk" it will actually come from the processor cache that holds the disk cache, provided the pattern of access is conducive to that. In short, cache is valuable for ANY data access. The more the better. "Celeron" should have been named deCeleron, but I don't suppose that would spin so will in the marketplace <G>.