On Mon, 2 Jul 2001, Cliff Woolley wrote:
> I'll post those (also useless ;-) numbers a little later.
Okay, I feel a bit better now. I'm still slapping myself for having run
all those initial tests over NFS (with unpredictable loads on the NFS
server during the tests). Here are the latest numbers, with the old ones
thrown in just for comparison. They basically show no difference
whatsoever between cached and uncached files, within a very small margin
of error. Granted, this is on multiple thousands of consecutive requests
for the same file, which is pretty much the ideal case for the kernel's
caches... the numbers might diverge a bit more when tested on a box
serving other files simultaneously in more of a real-world situation.
So these are pretty much useless, as Dean said, but here they are anyway.
static file NFS threaded:
No keepalives Keepalives
-------------------------- ----------------------------
no cache 118.98 req/s 676.92 KB/s 2280.06 req/s 13053.79 KB/s
CacheFile 90.19 req/s 511.21 KB/s 2181.21 req/s 12440.95 KB/s
MMapFile 80.90 req/s 458.54 KB/s 1978.32 req/s 11283.72 KB/s
static file local threaded:
No keepalives Keepalives
-------------------------- ----------------------------
no cache 154.54 req/s 879.06 KB/s 2432.63 req/s 13924.84 KB/s
CacheFile 155.53 req/s 881.38 KB/s 2556.91 req/s 14581.54 KB/s
MMapFile 155.03 req/s 878.55 KB/s 2660.11 req/s 15170.08 KB/s
server-parsed file NFS threaded:
No keepalives Keepalives
-------------------------- ----------------------------
no cache 31.81 req/s 183.68 KB/s 453.38 req/s 2647.38 KB/s
CacheFile 87.20 req/s 501.66 KB/s 682.49 req/s 3965.77 KB/s
MMapFile 104.17 req/s 599.30 KB/s 674.94 req/s 3925.77 KB/s
server-parsed file local threaded:
No keepalives Keepalives
-------------------------- ----------------------------
no cache 143.85 req/s 830.53 KB/s 723.16 req/s 4205.63 KB/s
CacheFile 144.26 req/s 829.76 KB/s 756.25 req/s 4406.76 KB/s
MMapFile 144.94 req/s 833.70 KB/s 802.16 req/s 4670.97 KB/s
--------------------------------------------------------------
Cliff Woolley
[EMAIL PROTECTED]
Charlottesville, VA
