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Re: BufferPainter::Clear() optimization [message #53935 is a reply to message #53923]

Fri, 15 May 2020 23:45

Didier
Messages: 680
Registered: November 2008
Location: France

Contributor

Here is what I get on my Linux and Ryzen 2700
Du to unstable results with 10 loops, I also placed results for 1000 loops

The new MemSet() is definitly really a good addition Smile

==== CLANG X64 ====
TIMING MemSet : 10.00 ms - 999.98 us (10.00 ms / 10 ), min: 1.00 ms, max: 1.00 ms, nesting: 0 - 10
TIMING SSEFill2 : 12.00 ms - 1.20 ms (12.00 ms / 10 ), min: 1.00 ms, max: 2.00 ms, nesting: 0 - 10
TIMING CoFill : 21.00 ms - 2.10 ms (21.00 ms / 10 ), min: 2.00 ms, max: 3.00 ms, nesting: 0 - 10
TIMING Fill : 30.00 ms - 3.00 ms (30.00 ms / 10 ), min: 3.00 ms, max: 3.00 ms, nesting: 0 - 10
TIMING memsetd : 30.00 ms - 3.00 ms (30.00 ms / 10 ), min: 2.00 ms, max: 9.00 ms, nesting: 0 - 10

TIMING MemSet : 833.97 ms - 833.97 us (834.00 ms / 1000 ), min: 0.00 ns, max: 2.00 ms, nesting: 0 - 1000
TIMING SSEFill2 : 870.97 ms - 870.97 us (871.00 ms / 1000 ), min: 0.00 ns, max: 2.00 ms, nesting: 0 - 1000
TIMING CoFill : 1.88 s - 1.88 ms ( 1.88 s / 1000 ), min: 1.00 ms, max: 3.00 ms, nesting: 0 - 1000
TIMING Fill : 2.90 s - 2.90 ms ( 2.90 s / 1000 ), min: 2.00 ms, max: 4.00 ms, nesting: 0 - 1000
TIMING memsetd : 2.51 s - 2.51 ms ( 2.51 s / 1000 ), min: 2.00 ms, max: 10.00 ms, nesting: 0 - 1000

==== GCC X64 ====
TIMING MemSet : 7.00 ms - 699.98 us ( 7.00 ms / 10 ), min: 0.00 ns, max: 1.00 ms, nesting: 0 - 10
TIMING SSEFill2 : 9.00 ms - 899.98 us ( 9.00 ms / 10 ), min: 0.00 ns, max: 1.00 ms, nesting: 0 - 10
TIMING CoFill : 23.00 ms - 2.30 ms (23.00 ms / 10 ), min: 2.00 ms, max: 3.00 ms, nesting: 0 - 10
TIMING Fill : 30.00 ms - 3.00 ms (30.00 ms / 10 ), min: 2.00 ms, max: 4.00 ms, nesting: 0 - 10
TIMING memsetd : 35.00 ms - 3.50 ms (35.00 ms / 10 ), min: 2.00 ms, max: 10.00 ms, nesting: 0 - 10

TIMING MemSet : 820.98 ms - 820.98 us (821.00 ms / 1000 ), min: 0.00 ns, max: 2.00 ms, nesting: 0 - 1000
TIMING SSEFill2 : 877.98 ms - 877.98 us (878.00 ms / 1000 ), min: 0.00 ns, max: 2.00 ms, nesting: 0 - 1000
TIMING CoFill : 1.85 s - 1.85 ms ( 1.85 s / 1000 ), min: 1.00 ms, max: 3.00 ms, nesting: 0 - 1000
TIMING Fill : 2.97 s - 2.97 ms ( 2.97 s / 1000 ), min: 2.00 ms, max: 4.00 ms, nesting: 0 - 1000
TIMING memsetd : 2.52 s - 2.52 ms ( 2.52 s / 1000 ), min: 2.00 ms, max: 8.00 ms, nesting: 0 - 1000

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