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authorStefano Brivio <sbrivio@redhat.com>2021-10-04 22:08:24 +0200
committerStefano Brivio <sbrivio@redhat.com>2021-10-04 22:20:43 +0200
commit683043e2001e71e0b7d0b132da4756d329f22f27 (patch)
treeb8161da947c2d927d63066559fe667ca345cbce3 /test/demo/pasta
parente1a2e2780c91eb83f4cf3dfc8bb8b8ad286f3389 (diff)
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tcp: Probe net.core.{r,w}mem_max, don't set SO_{RCV,SND}BUF if low
If net.core.rmem_max and net.core.wmem_max sysctls have low values, we can get bigger buffers by not trying to set them high -- the kernel would lock their values to what we get. Try, instead, to get bigger buffers by queueing as much as possible, and if maximum values in tcp_wmem and tcp_rmem are bigger than this, that will work. While at it, drop QUICKACK option for non-spliced sockets, I set that earlier by mistake. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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