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Re: Impressive improvement in std::vector when dealing with raw memory. [message #59194 is a reply to message #59191]

Mon, 21 November 2022 16:34

mirek
Messages: 14261
Registered: November 2005

Ultimate Member

The most likely explanation:

std::vector usually grows by factor 2 which leads to average 50% overhead.

With Upp::Vector, I have decided that things being fast enough, we can use factor 1.5 and have only 25% overhead. Which means we do more reallocations to save memory.

EDIT: Sorry, now rereading the thread you have figured that out Smile

Mirek

[Updated on: Mon, 21 November 2022 16:35]

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[Message index]

		Impressive improvement in stl::vector when dealing with raw memory. By: Lance on Mon, 14 November 2022 01:48
		Re: Impressive improvement in stl::vector when dealing with raw memory. By: pvictor on Mon, 14 November 2022 09:46
		Re: Impressive improvement in stl::vector when dealing with raw memory. By: Lance on Mon, 14 November 2022 14:31
		Re: Impressive improvement in stl::vector when dealing with raw memory. By: Lance on Mon, 14 November 2022 14:52
		Re: Impressive improvement in stl::vector when dealing with raw memory. By: Lance on Mon, 14 November 2022 15:28
		Re: Impressive improvement in std::vector when dealing with raw memory. By: Lance on Mon, 14 November 2022 17:24
		Re: Impressive improvement in std::vector when dealing with raw memory. By: Lance on Tue, 15 November 2022 15:58
		Re: Impressive improvement in std::vector when dealing with raw memory. By: Lance on Sat, 19 November 2022 22:04
		Re: Impressive improvement in std::vector when dealing with raw memory. By: Lance on Sun, 20 November 2022 01:50
		Re: Impressive improvement in std::vector when dealing with raw memory. By: mirek on Mon, 21 November 2022 16:34
		Re: Impressive improvement in std::vector when dealing with raw memory. By: Lance on Wed, 23 November 2022 00:39

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