Age | Commit message (Collapse) | Author |
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Complements cl/315991648.
PiperOrigin-RevId: 319327853
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Currently, we always perform a full-file sync which could be extremely
expensive for some applications. Although vfs1 did not fully support
sync_file_range, there were some optimizations that allowed us skip some
unnecessary write-outs.
Updates #2923, #1897.
PiperOrigin-RevId: 319324213
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The application can choose to initiate a non-blocking connect and
later block on a read, when the endpoint is still in SYN-SENT state.
PiperOrigin-RevId: 319311016
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PiperOrigin-RevId: 319283715
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- Support FIOASYNC, FIO{SET,GET}OWN, SIOC{G,S}PGRP (refactor getting/setting
owner in the process).
- Unset signal recipient when setting owner with pid == 0 and
valid owner type.
Updates #2923.
PiperOrigin-RevId: 319231420
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a) When GSO is in use we should not cap the segment to maxPayloadSize in
sender.maybeSendSegment as the GSO logic will cap the segment to the correct
size. Without this the host GSO is not used as we end up breaking up large
segments into small MSS sized segments before writing the packets to the
host.
b) The check to not split a segment due to it not fitting in the receiver window
when there are pending segments is incorrect as segments in writeList can be
really large as we just take the write call's buffer size and create a single
large segment. So a write of say 128KB will just be 1 segment in the
writeList.
The linux code checks if 1 MSS sized segments fits in the receiver's window
and if not then does not split the current segment. gVisor's check was
incorrect that it was checking if the whole segment which could be >>> 1 MSS
would fit in the receiver's window. This was causing us to prematurely stop
sending and falling back to retransmit timer/probe from the other end to send
data.
This was seen when running HTTPD benchmarks where @ HEAD when sending large
files the benchmark was taking forever to run.
The tcp_splitseg_mss_test.go is being deleted as the test as written doesn't
test what is intended correctly. This is because GSO is enabled by default and
the reason the MSS+1 sized segment is sent is because GSO is in use. A proper
test will require disabling GSO on linux and netstack which is going to take a
bit of work in packetimpact to do it correctly.
Separately a new test probably should be written that verifies that a segment >
availableWindow is not split if the availableWindow is < 1 MSS.
Fixes #3107
PiperOrigin-RevId: 319172089
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We were truncating buf using a index relative to the middle of the slice (i.e.
where envv begins), but we need to calculate the index relative to the entire
slice.
Updates #2923.
PiperOrigin-RevId: 319154950
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Updates #2923.
PiperOrigin-RevId: 319153792
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PiperOrigin-RevId: 319143410
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...by calling (*tcp.endpoint).EndpointState only once when possible.
Avoid wrapping (*sleep.Waker).Assert in a useless func while I'm here.
PiperOrigin-RevId: 319074149
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Also make some fixes to vfs1's F_SETOWN. The fcntl test now entirely passes
on vfs2.
Fixes #2920.
PiperOrigin-RevId: 318669529
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Updates #2923.
PiperOrigin-RevId: 318648128
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Updates #1479.
PiperOrigin-RevId: 318631247
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IPv6 raw sockets never include the IPv6 header.
PiperOrigin-RevId: 318582989
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SO_NO_CHECK is used to skip the UDP checksum generation on a TX socket
(UDP checksum is optional on IPv4).
Test:
- TestNoChecksum
- SoNoCheckOffByDefault (UdpSocketTest)
- SoNoCheck (UdpSocketTest)
Fixes #3055
PiperOrigin-RevId: 318575215
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PiperOrigin-RevId: 318563543
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Also, while we're here, make sure that gofer inotify events are generated when
files are created in remote revalidating mode.
Updates #1479.
PiperOrigin-RevId: 318536354
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PiperOrigin-RevId: 318511615
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- Split connTrackForPacket into 2 functions instead of switching on flag
- Replace hash with struct keys.
- Remove prefixes where possible
- Remove unused connStatus, timeout
- Flatten ConnTrack struct a bit - some intermediate structs had no meaning
outside of the context of their parent.
- Protect conn.tcb with a mutex
- Remove redundant error checking (e.g. when is pkt.NetworkHeader valid)
- Clarify that HandlePacket and CreateConnFor are the expected entrypoints for
ConnTrack
PiperOrigin-RevId: 318407168
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