Graham Swallow wrote:
>
> top # watching kswapd
> cat a_big_file >/dev/null
>
> As the kernel buffers/caches data blocks from the disk, (( maybe ))
> it spends more time finding spare blocks than it takes to load the data.
> On one machine (128 MB) CPU usage is 95% on another (64 MB) it's 65%
> When the file is re-read from cache, (no new pages), it is fast.
More cpu time or wall clock time? Ah, which is best? Depends on if the
cpu can use the cpu time it saves by going to the disk to do something
else. Who gets to choose?
George
>
> Sorry if this is the 3000'th notification you have seen
> Regards, Graham
>
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This archive was generated by hypermail 2b29 : Mon May 15 2000 - 21:00:15 EST