Closed
Bug 484624
Opened 16 years ago
Closed 9 years ago
improve math performance with doubles (matrix-mult)
Categories
(Core :: JavaScript Engine, defect)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: vlad, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(2 files)
Here's a simple matrix multiply benchmark that we should do much better on. Sticking this here to keep the code around.
Current tm on my MBP is around 1800ms; interp is around 11000ms. That's not a bad speedup, but a pure C version is around 65ms... so we still have a good amount to improve.
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Reporter | |
Comment 1•16 years ago
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Comment 2•13 years ago
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Current JS shell numbers for the attached testcase:
Interp: 9508.995 ms
-j: 9581.010 ms
-m: 2067.728 ms
-m -n: 268.358 ms
JM+TI is a huge win on this testcase. I don't have the pure C version compiled, but JM+TI appears to be within a factor of 4-5 of it. Not sure how fast this needs to be to consider it "fixed", though.
Blocks: 467263
Summary: TM: improve math performance with doubles (matrix-mult) → improve math performance with doubles (matrix-mult)
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Assignee | |
Updated•10 years ago
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Assignee: general → nobody
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Comment 3•9 years ago
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No longer reproducible - Resolving as WFM.
With iteration count increased from 1.000.000 to 10.000.000, SpiderMonkey finishes the benchmark in ~68ms whereas the cpp version needs ~345ms.
Status: NEW → RESOLVED
Closed: 9 years ago
Resolution: --- → WORKSFORME
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Description
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