| Age | Commit message (Collapse) | Author |
|---|
|
The poll code for kevent on OpenBSD and NetBSD had not been fixed
to work properly when disabling events in the scheduler poll-set.
Because they use ONESHOT the delete operation was built into the
trigger and thus a lot of code was not needed when doing oneshot,
however it is needed when doing non-oneshot.
|
|
|
|
Incorrect precidence rules made the driver never
deselect the given fds.
|
|
|
|
inet_drv adds some arcane #defines to get SCTP working, which may
end up disabling madvise(2) locally in that file, breaking the
build in the process.
This commit disables madvise(2) altogether on Solaris as it's
far simpler than undoing the define dance in erl_mmap.h.
|
|
Add enif_set_pid_undefined & enif_is_pid_undefined
|
|
'lukas/erts/fragment-dist-messages/OTP-13397/OTP-15610/OTP-15611/OTP-15612/OTP-15613'
* lukas/erts/fragment-dist-messages/OTP-13397/OTP-15610/OTP-15611/OTP-15612/OTP-15613:
erts: Add debug dist obuf memory leak check
win32: Fix ./otp_build debuginfo_win32
Make ld.sh on windows print better error reason
erts: Fix so that externals with creation 0 compare equal to all
erts: Expand etp to look for free processes
erts: Implement trapping while sending distr exit/down
erts: Add ERL_NODE_BOOKKEEP to node tables refc
erts: Refactor ErtsSendContext to be ErtsDSigSendContext
erts: Add distr testcases for fragmentation
erts: Make remote send of exit/2 trap
erts: Implement fragmentation of distrubution messages
erts: Expand distribution protocol documentation
erts: Move reason in dist messages to payload
erts: Remove a copy of distribution data payload
erts: Yield later during process exit and allow free procs to run
erts: Refactor rbt _yielding to use reductions
erts: Limit binary printout for %.XT in erts_print
|
|
|
|
|
|
|
|
* lukas/erts/fix-exit_status-netbsd/OTP-15558:
Fix EV_DISPATCH detection on NetBSD
|
|
|
|
* sverker/enif_select-faulty-assert:
erts: Fix faulty debug assert in enif_select
|
|
|
|
All of the Red-Black Tree _yielding functions have been
updated to work with reductions returned by the called
function instead of yielding on each element.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
jhogberg/john/erts/mark-pooled-free-blocks-unused/OTP-15075
Mark free blocks in pooled carriers as unused
|
|
This lets the OS reclaim the physical memory associated with these
blocks which reduces the impact of long-lived awkward allocations.
A small allocated block will still keep a huge carrier alive, but
the unused part of the carrier will now be available to the OS.
Co-authored-by: Dmytro Lytovchenko <[email protected]>
|
|
Conflicts:
erts/emulator/beam/erl_process.c
|
|
At start of the VM a poll-set that the schedulers
will check is created where fds that have triggered
many (at the moment, many means 10) times without
being deselected inbetween. In this scheduler specific
poll-set fds do not use ONESHOT, which means that the
number of syscalls goes down dramatically for such fds.
This pollset is introduced in order to handle fds that
are used by the erlang distribution and that never
change their state from {active, true}.
This pollset only handles ready_input events,
ready_output is still handled by the poll threads.
During overload, polling the scheduler poll-set is done
on a 10ms timer.
|
|
OTP-15450
|
|
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.
|
|
|
|
|
|
* sverker/enif-cancel-select/OTP-15095:
erts: Add ERL_NIF_SELECT_CANCEL flag for enif_select
|
|
|
|
A lot of erts internal messages used behind APIs to create
non-blocking calls, e.g. port_command, would cause the seq_trace
token to be cleared from the caller when it should not.
This commit fixes that and adds asserts that makes sure
that all messages sent have to correct token set.
Fixes: ERL-602
|
|
to deselect read and/or writes without stop callback.
|
|
This is a hack to make the "noshell" option work; kqueue can poll
these fds but will not report EV_EOF. This may be common to all
all pipes but we have no way to tell whether an fd is a pipe or
not.
|
|
|
|
|
|
that could cause clearing of fd-bits past allocated bit-vectors.
Bug introduced on master by
988f5f5e8061ce2e135a314ca782788eda478a06
|
|
and let compiler determine string lengths.
These were actually wrong in erl_db.c:
count_trap\0
replace_tra
select_tra
|
|
* lukas/erts/poll-thread/OTP-14346:
erts: nif resource stop from poll-thread is a indirect call
|
|
|
|
|
|
Improve float_to_list(F, [{decimals,D}])
|
|
to better conform with io_lib:format("~.*f", [D,F])
|
|
Currently (OpenBSD 6.2) the kqueu implementation on
opnebsd does not work properly for EOF conditions when
using EV_DISPATCH, so we use the EV_ONESHOT fallback there.
|
|
Implementation of true asynchronous signaling between processes
|
|
Communication between Erlang processes has conceptually always been
performed through asynchronous signaling. The runtime system
implementation has however previously preformed most operation
synchronously. In a system with only one true thread of execution, this
is not problematic (often the opposite). In a system with multiple threads
of execution (as current runtime system implementation with SMP support)
it becomes problematic. This since it often involves locking of structures
when updating them which in turn cause resource contention. Utilizing
true asynchronous communication often avoids these resource contention
issues.
The case that triggered this change was contention on the link lock due
to frequent updates of the monitor trees during communication with a
frequently used server. The signal order delivery guarantees of the
language makes it hard to change the implementation of only some signals
to use true asynchronous signaling. Therefore the implementations
of (almost) all signals have been changed.
Currently the following signals have been implemented as true
asynchronous signals:
- Message signals
- Exit signals
- Monitor signals
- Demonitor signals
- Monitor triggered signals (DOWN, CHANGE, etc)
- Link signals
- Unlink signals
- Group leader signals
All of the above already defined as asynchronous signals in the
language. The implementation of messages signals was quite
asynchronous to begin with, but had quite strict delivery constraints
due to the ordering guarantees of signals between a pair of processes.
The previously used message queue partitioned into two halves has been
replaced by a more general signal queue partitioned into three parts
that service all kinds of signals. More details regarding the signal
queue can be found in comments in the erl_proc_sig_queue.h file.
The monitor and link implementations have also been completely replaced
in order to fit the new asynchronous signaling implementation as good
as possible. More details regarding the new monitor and link
implementations can be found in the erl_monitor_link.h file.
|
|
No longer need for super carrier allocating executable memory.
|
|
|
|
|
|
|
