Re: VolanoMark Benchmark results for 2.5.26, 2.5.26 + rmap, 2.5.35 + mm1, and 2.5.38 + mm3

[Bill Hartner <hartner@austin.ibm.com>]

Andrew Morton wrote:
> 
> Bill Hartner wrote:
> >
> > ...
> > 2.5.35       44693  86.1 1.45        1,982,236 KB  5,393,152 KB  7,375,388 KB
> > 2.5.35mm1    39679  99.6 1.50       *2,720,600 KB *6,154,512 KB *8,875,112 KB
> >
> 
> 2.5.35 was fairly wretched from the swapout point of view.
> Would be interesting to retest on 2.5.38-mm/2.5.39 sometime.
> 

Here are VolanoMark results for 2.5.38 and 2.5.38-mm3 for both
3GB (memory pressure) and 4GB.  I will repeat for 2.5.40 mm1 or
what ever is the latest and greatest on Friday.

SUT same as :

http://marc.theaimsgroup.com/?l=linux-mm&m=103229747000714&w=2

NOTE : the swap device is on ServeRAID which is probably bouncing for
the HIGHMEM pages in most if not all of the tests so results will
likely improve when bouncing is eliminated.  Need to work this problem next.

2419     = 2.4.19 + o(1) scheduler
2419rmap = 2.4.19 + rmap14b + o(1) scheduler

%sys/%user = ratio of %system CPU utilization to %user CPU utilization.

========================================
The results for the 3 GB mem test were :
========================================

kernel       msg/s  %CPU %sys/%user  Total swpin   Total swpout  Total swapio
-----------  -----  ---- ----------  ------------  ------------  ------------

2.5.38       46081  90.1 1.44        1,992,608 KB  2,881,056 KB  4,873,664 KB
2.5.38mm3    44950  99.8 1.52        did not collect io - /proc/stat changed

=============================== old data below===============================
2.4.19       ***** system hard hangs - requires reset. *****
2.4.19rmap   37767  76.9 1.46        2,274,380 KB  3,800,336 KB  6,074,716 KB
2.5.26       51824  96.3 1.42        1,987,024 KB  2,148,100 KB  4,135,124 KB
2.5.26rmap   46053  90.8 1.55        3,139,324 KB  3,887,368 KB  7,026,692 KB
2.5.35       44693  86.1 1.45        1,982,236 KB  5,393,152 KB  7,375,388 KB
2.5.35mm1    39679  99.6 1.50       *2,720,600 KB *6,154,512 KB *8,875,112 KB

* used pgin/pgout instead of swapin/swapout since /proc/stat changed.

2.5.38 does not perform as well as 2.5.26 (before rmap).
46081/51284 = 89.9 % or 10.1 % degradation.

2.5.38mm3 does not perform as well as 2.5.38.
44950/46081 = 97.5 % or 2.5 % degradation.
CPU utilization is also higher - 99.8 vs 90.1.

========================================
The results for the 4 GB mem test were :
========================================

kernel       msg/s  %CPU %sys/%user  Total swpin   Total swpout  Total swapio
-----------  -----  ---- ----------  ------------  ------------  ------------

2.5.38       53084  99.9 1.41        0             0             0
2.5.38mm3    49933  99.9 1.47        0             0             0

=============================== old data below===============================
2.4.19       55386  99.8 1.40        0             0             0
2.4.19rmap   52330  99.5 1.43        0             2,363,388 KB  2,363,388 KB
2.5.26       55446  99.4 1.40        0             0             0
2.5.35       52845  99.9 1.38        0             0             0
2.5.35mm1    52755  99.9 1.42        0             0             0

2.5.38 does not perform as well as 2.5.26.
53084/55426 = 95.8 % or 4.2 % degradation.

2.5.38mm3 does not perform as well as 2.5.38.
49933/53084 = 94.1 % or 5.9 % degradation. Higher ratio of system CPU.

Bill
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