[Webkit-unassigned] [Bug 19250] New: Sunspider gets progressively slower
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun May 25 22:57:38 PDT 2008
http://bugs.webkit.org/show_bug.cgi?id=19250
Summary: Sunspider gets progressively slower
Product: WebKit
Version: 526+ (Nightly build)
Platform: Macintosh
URL: http://webkit.org/perf/sunspider-0.9/sunspider.html
OS/Version: Mac OS X 10.5
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: sherlock at genome.stanford.edu
Steps to reproduce:
1. Launch webkit
2. Go to bug URL
3. Run Sunspider - make note of results, and results' URL
4. Re-run it several times
Expected results:
Performance should be similar across runs
Actual results:
Performance is worse after each run - the overall time was always worse.
Results of a comparison between the first run and the fifth run pasted below:
TEST COMPARISON FROM TO
DETAILS
=============================================================================
** TOTAL **: *1.05x as slow* 1836.8ms +/- 0.8% 1927.0ms +/- 0.3%
significant
=============================================================================
3d: *1.07x as slow* 243.2ms +/- 2.1% 259.6ms +/- 0.7%
significant
cube: *1.13x as slow* 77.4ms +/- 4.2% 87.6ms +/- 0.8%
significant
morph: ?? 80.4ms +/- 2.6% 81.0ms +/- 1.1%
not conclusive: might be *1.01x as slow*
raytrace: *1.07x as slow* 85.4ms +/- 0.8% 91.0ms +/- 1.7%
significant
access: *1.08x as slow* 293.0ms +/- 1.7% 316.6ms +/- 0.8%
significant
binary-trees: *1.27x as slow* 32.0ms +/- 2.7% 40.8ms +/- 4.0%
significant
fannkuch: - 112.2ms +/- 2.9% 111.0ms +/- 0.0%
nbody: *1.16x as slow* 117.2ms +/- 0.5% 135.6ms +/- 0.5%
significant
nsieve: - 31.6ms +/- 8.6% 29.2ms +/- 1.9%
bitops: - 197.0ms +/- 1.3% 196.8ms +/- 0.9%
3bit-bits-in-byte: - 31.2ms +/- 1.8% 31.0ms +/- 2.8%
bits-in-byte: - 37.4ms +/- 1.8% 37.2ms +/- 1.5%
bitwise-and: - 55.8ms +/- 1.9% 55.8ms +/- 1.9%
nsieve-bits: ?? 72.6ms +/- 3.1% 72.8ms +/- 0.8%
not conclusive: might be *1.00x as slow*
controlflow: - 21.2ms +/- 2.6% 21.2ms +/- 2.6%
recursive: - 21.2ms +/- 2.6% 21.2ms +/- 2.6%
crypto: *1.04x as slow* 120.2ms +/- 0.5% 125.4ms +/- 1.1%
significant
aes: ?? 48.4ms +/- 1.4% 48.6ms +/- 2.3%
not conclusive: might be *1.00x as slow*
md5: *1.04x as slow* 35.8ms +/- 1.6% 37.2ms +/- 1.5%
significant
sha1: *1.10x as slow* 36.0ms +/- 0.0% 39.6ms +/- 1.7%
significant
date: *1.03x as slow* 162.2ms +/- 0.8% 167.6ms +/- 0.4%
significant
format-tofte: *1.03x as slow* 99.6ms +/- 0.7% 102.6ms +/- 0.7%
significant
format-xparb: *1.04x as slow* 62.6ms +/- 1.1% 65.0ms +/- 1.4%
significant
math: *1.12x as slow* 190.0ms +/- 0.7% 212.4ms +/- 0.9%
significant
cordic: *1.14x as slow* 63.4ms +/- 1.8% 72.0ms +/- 2.7%
significant
partial-sums: *1.10x as slow* 86.6ms +/- 1.3% 95.6ms +/- 0.7%
significant
spectral-norm: *1.12x as slow* 40.0ms +/- 0.0% 44.8ms +/- 2.3%
significant
regexp: *1.01x as slow* 175.6ms +/- 0.6% 177.2ms +/- 0.9%
significant
dna: *1.01x as slow* 175.6ms +/- 0.6% 177.2ms +/- 0.9%
significant
string: *1.04x as slow* 434.4ms +/- 0.9% 450.2ms +/- 1.0%
significant
base64: *1.03x as slow* 70.4ms +/- 1.0% 72.4ms +/- 0.9%
significant
fasta: ?? 80.8ms +/- 1.3% 81.4ms +/- 1.4%
not conclusive: might be *1.01x as slow*
tagcloud: *1.04x as slow* 102.8ms +/- 3.1% 106.8ms +/- 1.5%
significant
unpack-code: *1.02x as slow* 107.6ms +/- 0.6% 110.2ms +/- 0.9%
significant
validate-input: *1.09x as slow* 72.8ms +/- 1.4% 79.4ms +/- 3.6%
significant
tested with r34130 on 10.5.2 on a MacPro
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