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curl-multi-socket interface too slow
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From: Aleh Linkin via curl-library <curl-library_at_lists.haxx.se>
Date: Mon, 30 May 2022 13:39:15 +0300
Hi, developers!
I have application with libcurl uses simple multi interface and do 1500
requests per second without any problems with about 35% CPU.
I've decided to try curl_multi_socket interface because "it also offers a
much more high-performance API that will make a significant difference for
applications using large numbers of simultaneous connections."
My application uses epoll so I've created code based on it and
ephiperfifio. example.
As a result my application can't handle 1500 requests per second and starts
failing them with timeout. Moreover it uses much more CPU (50% on 1500 RPS).
I guess that I do something wrong but can't find the problem.
Could you help me, please?
My code here: https://godbolt.org/z/Gb4Gn3jro
Sincerely,
Oleg
Date: Mon, 30 May 2022 13:39:15 +0300
Hi, developers!
I have application with libcurl uses simple multi interface and do 1500
requests per second without any problems with about 35% CPU.
I've decided to try curl_multi_socket interface because "it also offers a
much more high-performance API that will make a significant difference for
applications using large numbers of simultaneous connections."
My application uses epoll so I've created code based on it and
ephiperfifio. example.
As a result my application can't handle 1500 requests per second and starts
failing them with timeout. Moreover it uses much more CPU (50% on 1500 RPS).
I guess that I do something wrong but can't find the problem.
Could you help me, please?
My code here: https://godbolt.org/z/Gb4Gn3jro
Sincerely,
Oleg
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