slightly off topic but.. Brooks Davis wrote: >On Wed, Feb 16, 2005 at 01:13:13PM -0800, Sean McNeil wrote: > > >The concept that most of your memory should be entierly free when the >system is not under load is simply wrong. The simplistic world view of >memory being allocated to a specific task or entierly free simply isn't >correct for all that it makes for nice graphs anyone can pretend they >understand. You can produce some sort of aproximation of the output you >see on other systems by modifying the program to include inactive memory >in free memory. That's what I did with Ganglia. > what I really want is a way to FORce certain pages out of cache. In particular I need to verify teh correctness of the version on 2ndary storage.. what I want is: int fd = open("myfile",...); write1GBfiletodisk(fd, data); ioctl(fd, PURGEFROMCACHE); perform_md5(fd); and be sure that teh MD5 is that of what is on the disk. not what is in RAM. > >-- Brooks > > >Received on Wed Feb 16 2005 - 22:13:47 UTC
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