2.4.2-test1 better on disk lock/freezups

From: LA Walsh (law@sgi.com)
Date: Mon Feb 05 2001 - 01:12:36 EST

In trying to apply Jens's patch I upgraded to 2.4.2-pre1. The figures on it(242-p1) look
better at this point: a vmstat dump, same data...notice this time it only took maybe 45
seconds to write out the data. I also got better interactive performance.
So write speed is up to about 3.5Mb/s. Fastest reads using 'hdparm' are in the 12-14Mb/s
range. Sooo...IDE hdparm block dev read vs. file writes...3-4:1 ratio?

I honestly have little clue as to what would be considered 'good' numbers.

Note the maximum 'system freeze' seems under 10 seconds now -- alot more
tolerable.

Note also, this was without my applying Jens's patch -- as I could not figure out how
to get it to apply cleanly :-(.

 0 0 0 0 77564 80220 280164 0 0 0 348 287 1367 10 7 83
 0 0 1 0 77560 80220 280164 0 0 0 304 193 225 0 1 99
 0 1 1 0 77572 80220 280156 0 0 0 162 241 354 4 2 95
 0 1 1 0 77572 80220 280156 0 0 0 156 218 182 0 1 99
 1 1 1 0 77560 80220 280164 0 0 0 165 217 218 0 1 99
 0 1 1 0 77328 80220 280164 0 0 0 134 213 215 1 1 97
 0 1 1 0 77328 80220 280164 0 0 0 138 217 177 0 1 98
 0 1 1 0 77328 80220 280164 0 0 0 206 215 178 0 1 99
 0 1 1 0 77332 80220 280164 0 0 0 166 219 206 1 1 98
 0 0 0 0 85632 80220 280172 0 0 14 12 192 360 1 1 98
  

-- 
Linda A Walsh                    | Trust Technology, Core Linux, SGI
law@sgi.com                      | Voice: (650) 933-5338
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