Re: ULE vs. 4BSD in RELENG_7

Josh Carroll wrote:
I just ran through some of my benchmarks on a kernel build from
sources as of today, and I've noticed an improvement for the ffmpeg
workload. Here's a comparison of 4bsd, ule (BETA1) and ule (BETA3).
This is vanilla source with no patches applied:

Sorry, the ministat output was mangled. I'll try this again with 80
columns instead.

Also, please disregard the buildworld comparison, as world has changed
since the previous 4bsd and ule runs, so obviously that's not a valid
comparison. Sorry about that.

Here are the ministat outputs for ffmpeg and sysbench, truncated to 80
columns instead. Hopefully that'll come through properly.



is bigger better or worse?

Josh


ffmpeg:

x 4bsd
+ ule
* uleb3
+------------------------------------------------------------------------------+
|x xx xx * * * * * + + ++ +|
| |____A___| |_____AM____| |____MA_____| |
+------------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 5 93.28 94.05 93.74 93.746 0.29686697
+ 5 97.56 98.7 98.03 98.042 0.41924933
Difference at 95.0% confidence
4.296 +/- 0.529778
4.5826% +/- 0.565121%
(Student's t, pooled s = 0.363249)
* 5 95.58 96.69 96.37 96.278 0.42446437
Difference at 95.0% confidence
2.532 +/- 0.534176
2.70092% +/- 0.569812%
(Student's t, pooled s = 0.366265)

sysbench:

x 4bsd
+ ule
* uleb3
+------------------------------------------------------------------------------+
|x x x x + ++ * + * *|
| |___A_M_| |_____AM|___|A_____||
+------------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 5 2151.75 2172.05 2166.7 2163.14 8.1262968
+ 5 2274.13 2309.66 2298.99 2296.89 13.648515
Difference at 95.0% confidence
133.75 +/- 16.3813
6.18314% +/- 0.757294%
(Student's t, pooled s = 11.2321)
* 3 2303.61 2327.29 2313.17 2314.69 11.912951
Difference at 95.0% confidence
151.55 +/- 17.0782
7.00602% +/- 0.789509%
(Student's t, pooled s = 9.5567)
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