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Re: BufferPainter::Clear() optimization [message #54033 is a reply to message #54031]

Fri, 22 May 2020 11:13

Tom1
Messages: 1212
Registered: March 2007

Senior Contributor

Quote:

I believe that the problem is that memcpyd became too fat and it screws inlining. So the thing to solve now is to find how to remove some if this fat to non-inline.... (svo_memcpy already has such non-inlined part). Probably same should happend to memsetd too....

Hi Mirek,

I think this could be the same phenomenon that caused me issues with 32-bit MSC. It was more critical to code length and the short transfers suffered immediately when code size increased. At the same time MSBT19x64 and both CLANG and CLANGx64 did not experience any trouble. Perhaps MSBT19 did not do as good job with code size as the rest and on my CPU the instruction cache was exhausted. I bet the instruction cache on your CPU is larger than what my i7 has.

At some moment I was thinking of offering the functions as two variants: inline and never_inline, in a way that the never_inline is simply calling the inline. An then when the code benefits from it, calling the never_inline variant.

Then I also thought of handling something like <= 16 .. 32 sizes inline and the rest in a deeper never_inline function. This would probably improve the situation without adding so much complexity.

Best regards,

Tom

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[Message index]

		SSE2 and SVO optimization (Painter, memcpy....) By: Tom1 on Mon, 27 April 2020 19:19
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 28 April 2020 10:12
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 28 April 2020 10:20
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 28 April 2020 10:27
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 28 April 2020 10:33
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 28 April 2020 11:10
		Re: BufferPainter::Clear() optimization By: Oblivion on Tue, 28 April 2020 11:27
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 28 April 2020 11:17
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 15 May 2020 09:04
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 15 May 2020 10:18
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 15 May 2020 11:33
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 15 May 2020 11:41
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 15 May 2020 11:47
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 15 May 2020 12:08
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 15 May 2020 13:15
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 15 May 2020 13:36
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 15 May 2020 23:13
		Re: BufferPainter::Clear() optimization By: Didier on Fri, 15 May 2020 23:45
		Re: BufferPainter::Clear() optimization By: Tom1 on Sat, 16 May 2020 01:59
		Re: BufferPainter::Clear() optimization By: mirek on Sun, 17 May 2020 08:47
		Re: BufferPainter::Clear() optimization By: Tom1 on Sun, 17 May 2020 10:01
		Re: BufferPainter::Clear() optimization By: mirek on Sun, 17 May 2020 15:49
		Re: BufferPainter::Clear() optimization By: mirek on Sun, 17 May 2020 18:05
		Re: BufferPainter::Clear() optimization By: Tom1 on Sun, 17 May 2020 20:56
		Re: BufferPainter::Clear() optimization By: Tom1 on Sun, 17 May 2020 21:46
		Re: BufferPainter::Clear() optimization By: Tom1 on Sun, 17 May 2020 23:25
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 10:16
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 11:13
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 13:31
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 13:53
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 16:06
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 17:08
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 18:12
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 18:28
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 20:57
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 21:20
		Re: BufferPainter::Clear() optimization By: Tom1 on Mon, 18 May 2020 21:40
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 21:56
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 13:33
		Re: BufferPainter::Clear() optimization By: Tom1 on Sun, 17 May 2020 00:10
		Re: BufferPainter::Clear() optimization By: Oblivion on Fri, 15 May 2020 12:16
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 15 May 2020 12:28
		Re: BufferPainter::Clear() optimization By: Oblivion on Sun, 17 May 2020 22:00
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 18 May 2020 13:43
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 19 May 2020 00:02
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 19 May 2020 08:59
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 19 May 2020 09:14
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 19 May 2020 09:49
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 19 May 2020 12:35
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 19 May 2020 12:45
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 19 May 2020 13:18
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 19 May 2020 16:22
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 01:34
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 01:52
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 08:22
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 10:04
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 10:20
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 10:55
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 11:56
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 12:23
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 12:41
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 12:53
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 13:01
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 15:18
		Re: BufferPainter::Clear() optimization By: Tom1 on Thu, 21 May 2020 16:21
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 15:58
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 16:15
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 17:16
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 17:31
		Re: BufferPainter::Clear() optimization By: mirek on Wed, 20 May 2020 17:37
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 19:51
		Re: BufferPainter::Clear() optimization By: mirek on Thu, 21 May 2020 09:04
		Re: BufferPainter::Clear() optimization By: mirek on Thu, 21 May 2020 13:28
		Re: BufferPainter::Clear() optimization By: Tom1 on Thu, 21 May 2020 16:38
		Re: BufferPainter::Clear() optimization By: koldo on Thu, 21 May 2020 17:51
		Re: BufferPainter::Clear() optimization By: Tom1 on Thu, 21 May 2020 19:22
		Re: BufferPainter::Clear() optimization By: Tom1 on Thu, 21 May 2020 19:25
		Re: BufferPainter::Clear() optimization By: Didier on Fri, 22 May 2020 09:32
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 10:04
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 10:05
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 10:28
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 22 May 2020 11:13
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 11:39
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 22 May 2020 11:46
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 22 May 2020 11:59
		Re: BufferPainter::Clear() optimization By: koldo on Fri, 22 May 2020 12:47
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 13:01
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 22 May 2020 13:06
		Re: BufferPainter::Clear() optimization By: koldo on Fri, 22 May 2020 16:58
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 19:03
		Re: BufferPainter::Clear() optimization By: mirek on Sun, 24 May 2020 10:20
		Re: BufferPainter::Clear() optimization By: Oblivion on Sun, 24 May 2020 11:56
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 26 May 2020 13:14
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 26 May 2020 14:15
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 01 June 2020 00:39
		Re: BufferPainter::Clear() optimization By: omari on Mon, 01 June 2020 11:24
		Re: BufferPainter::Clear() optimization By: mirek on Mon, 01 June 2020 15:47
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 02 June 2020 13:59
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 02 June 2020 17:43
		Re: BufferPainter::Clear() optimization By: Tom1 on Tue, 02 June 2020 18:31
		Re: BufferPainter::Clear() optimization By: mirek on Thu, 04 June 2020 17:23
		Re: BufferPainter::Clear() optimization By: mirek on Thu, 04 June 2020 17:45
		Re: BufferPainter::Clear() optimization By: Novo on Thu, 04 June 2020 18:07
		Re: BufferPainter::Clear() optimization By: mirek on Thu, 04 June 2020 20:20
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 12 June 2020 12:23
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 12 June 2020 12:55
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 12 June 2020 16:28
		Re: BufferPainter::Clear() optimization By: Novo on Fri, 12 June 2020 18:45
		Re: BufferPainter::Clear() optimization By: mirek on Sat, 13 June 2020 10:15
		Re: BufferPainter::Clear() optimization By: coolman on Sat, 13 June 2020 10:33
		Re: BufferPainter::Clear() optimization By: Novo on Sat, 13 June 2020 13:07
		Re: BufferPainter::Clear() optimization By: coolman on Sat, 13 June 2020 14:45
		Re: BufferPainter::Clear() optimization By: Didier on Sun, 14 June 2020 12:45
		Re: BufferPainter::Clear() optimization By: mirek on Sun, 14 June 2020 14:09
		Re: BufferPainter::Clear() optimization By: Tom1 on Thu, 04 June 2020 18:48
		Re: BufferPainter::Clear() optimization By: koldo on Fri, 22 May 2020 10:29
		Re: BufferPainter::Clear() optimization By: mirek on Fri, 22 May 2020 11:32
		Re: BufferPainter::Clear() optimization By: Tom1 on Fri, 22 May 2020 11:32
		Re: BufferPainter::Clear() optimization By: Tom1 on Wed, 20 May 2020 12:52
		Re: BufferPainter::Clear() optimization By: mirek on Tue, 19 May 2020 11:32

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