SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Rambus (RMBS) - Eagle or Penguin
RMBS 92.72+5.2%Nov 24 3:59 PM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Steve Lee who wrote (44125)6/12/2000 9:40:00 AM
From: Scumbria   of 93625
 
Steve,

If u r accessing a file which has not been accessed, and is not in virtual memory, then it is not paged out.

Any file accessed for the first time will come from disk. Subsequent accesses are the ones affected by DRAM size.
The reason why memory size in MP systems is important, is because the bandwidth from disk is much lower than the bandwidth from DRAM. If an inadequate amount of DRAM is available, the bandwidth becomes limited by disk bandwidth, rather than DRAM bandwidth.

Here is a paper which discusses the importance of "effective memory bandwidth" in MP systems. The key line from the article is:

This paper presents a cluster-based PPMB multiprocessor system and an analysis of its performance. The effective memory bandwidth is chosen as the main performance measure.

csep.hpcc.nectec.or.th

Scumbria
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News