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Re: Core 2019 [message #51827 is a reply to message #51817]

Sat, 08 June 2019 18:31

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

This is definitely something to investigate...

The working hypothesis is that you are allocating some really large blocks (>10MB) and in previous allocator, these were immediately unmapped back (and it was fast peak, so unnoticed while watching top), while the new allocator keeps them for reuse and system has not swapped them out yet. My experience is that the cuprit is usually a big StringStream.

We can test this. In HeapImp.h, there is HPAGE constant. This is the size of "master chunk" (in 4KB units) and also maximum size of block that allocator keeps for reuse. Try to change that to something smaller, like 256 and retest...

Mirek

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[Message index]

		Core 2019 By: mirek on Fri, 07 June 2019 13:56
		Re: Core 2019 By: Novo on Fri, 07 June 2019 17:51
		Re: Core 2019 By: mirek on Fri, 07 June 2019 18:01
		Re: Core 2019 By: Novo on Fri, 07 June 2019 23:00
		Re: Core 2019 By: Novo on Sat, 08 June 2019 18:30
		Re: Core 2019 By: mirek on Sat, 08 June 2019 18:40
		Re: Core 2019 By: Novo on Sat, 08 June 2019 19:44
		Re: Core 2019 By: mirek on Sat, 08 June 2019 20:38
		Re: Core 2019 By: Novo on Sat, 08 June 2019 21:45
		Re: Core 2019 By: Novo on Sat, 08 June 2019 21:42
		Re: Core 2019 By: mirek on Sat, 08 June 2019 18:31
		Re: Core 2019 By: Novo on Sat, 08 June 2019 21:54
		Re: Core 2019 By: Novo on Sat, 08 June 2019 22:06
		Re: Core 2019 By: mirek on Sun, 09 June 2019 10:03
		Re: Core 2019 By: Novo on Sun, 09 June 2019 15:20
		Re: Core 2019 By: mirek on Sun, 09 June 2019 16:33
		Re: Core 2019 By: mirek on Sun, 09 June 2019 16:43
		Re: Core 2019 By: Novo on Sun, 09 June 2019 17:34
		Re: Core 2019 By: mirek on Sun, 09 June 2019 18:54
		Re: Core 2019 By: Novo on Sun, 09 June 2019 21:39
		Re: Core 2019 By: mirek on Sun, 09 June 2019 23:11
		Re: Core 2019 By: mirek on Sun, 09 June 2019 23:25
		Re: Core 2019 By: mirek on Mon, 10 June 2019 17:27
		Re: Core 2019 By: Novo on Mon, 10 June 2019 18:01
		Re: Core 2019 By: mirek on Mon, 10 June 2019 18:17
		Re: Core 2019 By: Novo on Mon, 10 June 2019 18:21
		Re: Core 2019 By: Novo on Mon, 10 June 2019 18:45
		Re: Core 2019 By: Novo on Mon, 10 June 2019 18:18
		Re: Core 2019 By: Novo on Mon, 10 June 2019 18:34
		Re: Core 2019 By: Novo on Sun, 09 June 2019 17:02
		Re: Core 2019 By: Novo on Sun, 09 June 2019 17:15
		Re: Core 2019 By: mirek on Sun, 09 June 2019 20:56
		Re: Core 2019 By: mirek on Sun, 09 June 2019 18:51
		Re: Core 2019 By: Novo on Fri, 21 June 2019 05:43
		Re: Core 2019 By: Novo on Fri, 21 June 2019 06:14
		Re: Core 2019 By: mirek on Fri, 21 June 2019 09:16
		Re: Core 2019 By: mirek on Fri, 21 June 2019 09:23
		Re: Core 2019 By: Novo on Fri, 21 June 2019 19:58
		Re: Core 2019 By: Novo on Fri, 21 June 2019 20:28
		Re: Core 2019 By: Novo on Sat, 22 June 2019 02:51
		Re: Core 2019 By: Novo on Sat, 22 June 2019 02:53
		Re: Core 2019 By: mirek on Sat, 22 June 2019 10:23
		Re: Core 2019 By: Novo on Sat, 22 June 2019 17:49
		Re: Core 2019 By: mirek on Sat, 22 June 2019 22:22
		Re: Core 2019 By: Novo on Sat, 22 June 2019 23:44
		Re: Core 2019 By: mirek on Sun, 23 June 2019 08:21
		Re: Core 2019 By: Novo on Sun, 23 June 2019 21:26
		Re: Core 2019 By: mirek on Mon, 24 June 2019 09:22
		Re: Core 2019 By: Novo on Mon, 24 June 2019 17:36
		Re: Core 2019 By: mirek on Mon, 24 June 2019 18:42
		Re: Core 2019 By: Novo on Mon, 24 June 2019 19:36
		Re: Core 2019 By: mirek on Mon, 24 June 2019 20:15
		Re: Core 2019 By: mirek on Sun, 23 June 2019 09:55
		Re: Core 2019 By: mirek on Sun, 23 June 2019 10:19
		Re: Core 2019 By: Novo on Mon, 24 June 2019 06:13
		Re: Core 2019 By: mirek on Wed, 26 June 2019 08:52
		Re: Core 2019 By: mirek on Thu, 27 June 2019 09:44
		Re: Core 2019 By: mirek on Fri, 28 June 2019 09:09
		Re: Core 2019 By: Tom1 on Fri, 28 June 2019 16:56
		Re: Core 2019 By: mirek on Fri, 28 June 2019 17:30
		Re: Core 2019 By: mirek on Fri, 28 June 2019 17:31
		Re: Core 2019 By: mirek on Fri, 28 June 2019 17:40
		Re: Core 2019 By: Tom1 on Fri, 28 June 2019 18:38
		Re: Core 2019 By: Novo on Sun, 30 June 2019 19:02
		Re: Core 2019 By: mirek on Sun, 30 June 2019 19:11
		Re: Core 2019 By: Novo on Sun, 30 June 2019 20:12
		Re: Core 2019 By: mirek on Mon, 01 July 2019 00:03
		Re: Core 2019 By: Tom1 on Mon, 01 July 2019 09:14
		Re: Core 2019 By: Novo on Thu, 11 July 2019 19:55
		Re: Core 2019 By: mirek on Thu, 11 July 2019 20:14
		Re: Core 2019 By: Novo on Thu, 11 July 2019 20:53
		Re: Core 2019 By: mirek on Fri, 12 July 2019 10:09
		Re: Core 2019 By: Novo on Fri, 12 July 2019 16:50
		Re: Core 2019 By: Novo on Thu, 08 August 2019 21:47
		Re: Core 2019 By: mirek on Thu, 08 August 2019 22:47
		Re: Core 2019 By: mirek on Thu, 08 August 2019 22:53
		Re: Core 2019 By: mirek on Thu, 08 August 2019 22:59
		Re: Core 2019 By: Novo on Thu, 08 August 2019 23:30
		Re: Core 2019 By: mirek on Fri, 09 August 2019 00:05
		Re: Core 2019 By: Novo on Fri, 21 June 2019 17:59
		Re: Core 2019 By: Novo on Fri, 21 June 2019 18:01
		Re: Core 2019 By: Novo on Fri, 21 June 2019 18:10

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