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OTP-15474
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OTP-15473
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The previous implementation uses a round-trip in the poll-set
to simulate a yield of the port context. With the poll thread
implementation this is no longer a good idea as it generated a
lot more work for the system. So this commit changes the
implementation to use a timer instead.
OTP-15471
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By optimizing driver_set_timer for 0 we can use it
instead of select to do a yield in the driver.
Use full for delay_send in the inet driver.
OTP-15472
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The most common case for any socket is to have zero or one
timer, so we optimize for the one case. The only case when
we have more than one timer is when the multi accept feature
is used.
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OTP-15450
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OTP-15450
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Before this change, it was always the aux thread that was woken
to handle thread progress events scheduled to happen when all
schedulers were going to sleep. This was ok in the pre-OTP-21
implementation when the aux thread just slept on a tse. Now that
it sleeps in the fallback pollset this uses too much cpu so
instead we wake the thread that is doing the request if it is
a managed thread, or else we wake scheduler 1.
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The poll thread does a lot of waking up and then going
back to sleep. A large part of the waking up is managing
thread progress and a large part of that was using thread
specific data to get the thread progress data pointer.
With this refactor the tpd is passed to each of the functions
which greatly decreases the number of ethr_get_tsd calls
which in turn halves the CPU usage of the poller thread in
certain scenarios.
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* john/erts/fix-unc-paths-windows/OTP-15333/ERL-737:
erts: Fix UNC path handling on Windows
erts: Fix a compiler warning
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* raimo/BSD-sockopt-pktoptions/ERIERL-187/OTP-14297:
Fix bug for sockopt pktoptions on BSD
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This is unlikely to be the last of the path problems seen after
OTP 21, and I'm starting to regret my decision to unconditionally
use long paths. The idea to hit all long-path problems all the time
was good in theory as it makes such bugs far more visible, but
there just aren't enough people who test pre-release versions on
Windows, making this the world's slowest game of whack-a-mole.
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This would've been a bug if the value was used.
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The macros for the BSD style option names had accidentally
wound up outside the option parsing loop, causing unclear
behaviour and Valgrind errors.
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* maint-19:
Updated OTP version
Update release notes
Update version numbers
erts: Fix memory leak when sending to terminating port
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Cherry-picked from 7c5fcd3f2701cbb614930682ac52ff75b9c26e6c.
Error: Leak_DefinitelyLost
erts_alloc:230 (-> 0x52E54D) [erl_alloc.h]
port_task_alloc:154 (-> 0x52F3CA) [erl_port_task.c]
erts_port_task_alloc_p2p_sig_data:212 (-> 0x52F5D3) [erl_port_task.c]
erts_port_output:2147 (-> 0x4F6057) [io.c]
erts_port_command:4126 (-> 0x4FA10E) [io.c]
do_send:2200 (-> 0x4E4C64) [bif.c]
erl_send:2494 (-> 0x4E5E09) [bif.c]
process_main:1730 (-> 0x43ADA5) [beam_emu.c]
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* raimo/receive-TOS-TCLASS/ERIERL-187/OTP-15145:
Elaborate the disclaimer for 'pktoptions'
Improve platform filter
Fix endianness bug for CMSG parsing
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* sverker/erts/robustify-dist-entry-states/OTP-15297:
erts: Refactor port dist_entry & conn_id into PRTSD
Remove ugly fail case macros
Consolidate distribution entry state transitions
erts: Fix bug in undocumented system_flag(scheduling_statistics)
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spelled out as "port specific data".
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* Make connection_id part of the distribution handle as {ConnId, DistEntry}
in order for BIFs to verify correct connection.
* Make distribution handle opaque to net_kernel.
* Remove some unsafe lockless reads of DistEntry.flags
* Change state ERTS_DE_STATE_EXITING to be more of an internal state that
prevents erts from enqueue, encode or schedule new data to be sent. Otherwise
it should behave like ERTS_DE_STATE_CONNECTED.
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* raimo/receive-TOS-TCLASS/ERIERL-187/OTP-15145:
Write testcases for recvtos and friends
Fix term buffer overflow bug
Fix documentation due to feedback
Implement socket option recvtos and friends
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* john/erts/improve-list-reverse-trapping/OTP-15199:
Improve trapping in lists:reverse/2
Fix unsafe use of lists:reverse/1
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* rickard/conf-pgo/OTP-15282:
Fix PGO configure test
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* hasse/syntax_tools/fix_revert/OTP-15294:
erts: Add comment about [] and nil() to The Abstract Format
syntax_tools: Correct erl_syntax:revert/1
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If the process had more free space than reductions it could run a
lot longer than it was supposed to. It didn't honor the number of
reductions going in either, nor did it bump reductions when
returning its result or erroring out.
This commit also removes this function from a work function in
scheduler_SUITE as it's extremely sensitive to the number of
reductions spent in the test, causing
equal_and_high_with_part_time_max to fail on some machines.
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We said reverse/2 but used reverse/1 which is unsafe to use in
preloaded modules. This didn't have any effect in practice as the
affected functions weren't used before the code server was started,
but it's still an error.
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* maint-21:
Updated OTP version
Update release notes
Update version numbers
erts: Fix "Prevent inconsistent node lists" fix
Fix include-path regression caused by dd0a39c
Restore default SIGTERM behaviour for port programs
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Uses port specific data out of bounds.
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into maint-21
* sverker/erts/fix-aborted-pending-connection-race/OTP-15296:
erts: Fix "Prevent inconsistent node lists" fix
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done in a31216200bdee2c04b3fb3ae5e26607674715c8a
that could cause a new pending connection to be incorrectly aborted.
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* raimo/improve-doc-indexing/ERL-666:
Correct doc markers
Improve indexing of cref docs
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erl_child_setup program ignores TERM signals as of ERTS version
10.0 (cff8dce0). This setting was unfortunately inherited by
port programs. This commit restores handling of TERM signals
in port programs to the default behavior. That is, terminate the
process.
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* rickard/pcre-8.42/OTP-15217:
Update PCRE from version 8.41 to version 8.42
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erts: Fix configure check when cross-compiling
OTP-15282
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