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Re: [Wget-dev] wget2 | HTTP/2 Performance (#386)
From: |
Tim Rühsen |
Subject: |
Re: [Wget-dev] wget2 | HTTP/2 Performance (#386) |
Date: |
Thu, 14 Jun 2018 10:02:15 +0000 |
We have several 'screws' to decrease CPU usage, but that's another point.
The main thing currently is http2 and the first thing is to increase internal
buffers - but I can't find the API. BTW i think that the nghttp2 docs are hard
to read and understand. The naming is awful, the text uses unusual grammar and
often stay unclear.
My harddisk is not a bottleneck (SSD writing >1GB/s), my network has 250 Mbit/s
down.
What my measurement shows: http2 takes 2x the time. Your results are much
worse, right ? We should first find what the difference between our systems are
(versions of gnutls and libnghttp2).
Here: gnutls 3.5.18, nghttp2 1.32.0).
In the next step we could use wireshark to see the differences between wget2
and curl, because it looks like a latency problem. I see that our side sends
many WINDOW_UPDATE - maybe we can switch that off.
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- [Wget-dev] wget2 | HTTP/2 Performance (#386), Darshit Shah, 2018/06/13
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- Re: [Wget-dev] wget2 | HTTP/2 Performance (#386),
Tim Rühsen <=
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