| Age | Commit message (Collapse) | Author |
|---|
|
* maint:
Light weight statistics of run queue lengths
Conflicts:
erts/preloaded/ebin/erlang.beam
|
|
- statistics(total_run_queue_lengths)
- statistics(run_queue_lengths)
- statistics(total_active_tasks)
- statistics(active_tasks)
Conflicts:
erts/emulator/beam/erl_process.c
|
|
* lukas/erts/forker: (28 commits)
erts: Never abort in the forked child
erts: Mend ASSERT makro for erl_child_setup
erts: Allow enomem failures in port_SUITE
erts: iter_port sleep longer on freebsd
erts: Allow one dangling fd if there is a gethost port
erts: Only use forker StackAck on freebsd
erts: It is not possible to exit the forker driver
erts: Add forker StartAck for port start flowcontrol
erts: Fix large open_port arg segfault for win32
erts: Fix memory leak at async open port
kernel: Remove cmd server for unix os:cmd
erts: Add testcase for huge port environment
erts: Move os_pid to port hash to child setup
erts: Handle all EINTR and EAGAIN cases in child setup
erts: Make child_setup work with large environments
erts: Fix forker driver ifdefs for win32
erts: Fix uds socket handling for os x
erts: Fix dereferencing of unaligned integer for sparc
erts: Flatten too long io vectors in uds write
erts: Add fd count test for spawn_driver
...
Conflicts:
erts/emulator/beam/erl_node_tables.c
erts/preloaded/src/erts_internal.erl
|
|
Instead of forking from the beam process, we create a separate
process in which all forks are done. This has several advantages:
1) performance:
* don't have to close all fd's in the world
* fork only has to copy stuff from a small process
* work is done in a completely seperate process
* a 3x performance increase has been measured,
can be made even greater (10x) if we cache the
environment in child setup
2) stability
* the exec is done in another process than beam, which means that
if the file that we exec to is on an nfs that is not available
right now we will not block a scheduler until the nfs returns.
3) simplicity
* don't have to deal with SIGCHLD in the erts
Unfortunately, this solution also implies some badness.
1) There will always be a seperate process running together with
beam on unix. This could be confusing and undesirable.
2) We have to transfer the entire environment to child_setup
for each command.
OTP-13088
|
|
* rickard/ohmq-fixup/OTP-13047:
Replace off_heap_message_queue option with message_queue_data option
Always use literal_alloc
Distinguish between GC disabled by BIFs and other disabled GC
Fix process_info(_, off_heap_message_queue)
Off heap message queue test suite
Remove unused variable
Fix memory leaks
|
|
The message_queue_data option can have the values
- off_heap
- on_heap
- mixed
|
|
Processes remember heap fragments that are known to be fully
live due to creation in a just called BIF that yields in the
live_hf_end field. This field must not be used if we have not
disabled GC in a BIF. F_DELAY_GC has been introduced in order
to distinguish between to two different scenarios.
- F_DISABLE_GC should *only* be used by BIFs. This when
the BIF needs to yield while preventig a GC.
- F_DELAY_GC should only be used when GC is temporarily
disabled while the process is scheduled. A process must
not be scheduled out while F_DELAY_GC is set.
|
|
|
|
|
|
* egil/fix-seq_trace:
Fix seq_trace token copy size
Fix seq_trace refactoring bug
|
|
|
|
|
|
|
|
|
|
|
|
The TMPBUF option is no longer needed due to is_literal test and NONE
was only used for initial debugging. So we remove the entire option.
|
|
|
|
This is very verbose, you have been warned.
It should work with the copy-spy.py script, which may be a bit outdated.
|
|
|
|
* rickard/gc-bump-reds/OTP-13097:
Bump reductions on GC
|
|
* rickard/ohmq/OTP-13047:
Fragmented young heap generation and off_heap_message_queue option
Refactor GC
Introduce literal tag
Conflicts:
erts/doc/src/erlang.xml
erts/emulator/beam/erl_gc.c
|
|
|
|
* The youngest generation of the heap can now consist of multiple
blocks. Heap fragments and message fragments are added to the
youngest generation when needed without triggering a GC. After
a GC the youngest generation is contained in one single block.
* The off_heap_message_queue process flag has been added. When
enabled all message data in the queue is kept off heap. When
a message is selected from the queue, the message fragment (or
heap fragment) containing the actual message is attached to the
youngest generation. Messages stored off heap is not part of GC.
|
|
Not needed as it is always set to erts_this_dist_entry (on net_kernel).
|
|
Binary vheap mature is not necessary for binary gc.
|
|
* maint:
Add configure switch --disable-saved-compile-time
Fix ethread events with timeout
Improve choice of clock sources at build time
|
|
* rickard/event-tmo/OTP-12954:
Fix ethread events with timeout
|
|
Lots of pthread platforms unnecessarily falled back on the pipe/select
solution. This since we tried to use the same monotonic clock source
for pthread_cond_timedwait() as used by OS monotonic time. This has
been fixed on most platforms by using another clock source.
Darwin can however not use pthread_cond_timedwait() with monotonic
clock source and has to use the pipe/select solution. On darwin we
now use select with _DARWIN_UNLIMITED_SELECT in order to be able to
handle a large amount of file descriptors.
|
|
* maint:
erts: Make sure to unlock status lock when setting process prio
|
|
* lukas/erts/process_priority_unlock/OTP-12943:
erts: Make sure to unlock status lock when setting process prio
|
|
|
|
* maint:
erts: Don't abort when a system process is terminated
|
|
* lukas/erts/system_process_core/OTP-12934:
erts: Don't abort when a system process is terminated
|
|
* maint:
Teach smp VM how to deal with crash of a linked trace port
|
|
* sverk/smp-trace-port-exit-bug/OTP-12901:
Teach smp VM how to deal with crash of a linked trace port
|
|
Problem: The sys-msg-dispather crashes the VM when trying to send
exit signals from the links of the terminating trace port.
If try-lock of the linked process fails, a pending exit is
scheduled and erts_scheduler_data() is then called to find
"my" run queue. But sys-msg-dispatcher is not a scheduler
and has no scheduler data, hence SEGV.
Fix: If not a scheduler and we cannot get process locks,
schedule process in its previous run-queue.
|
|
* lukas/ose/remove/OTP-12573:
Remove OSE from erl_interface
ose: Remove all code related to the OSE port
|
|
|
|
The OSE port is no longer supported and this commit removed it
and any changes related to it. The things that were general
improvements have been left in the code.
|
|
* rickard/non-smp-trace-port-exit-bug/OTP-12889:
Teach non-smp VM how to deal with trace port crash
Test case testing crash in tracer port
|
|
|
|
Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/vsn.mk
lib/runtime_tools/doc/src/notes.xml
lib/runtime_tools/vsn.mk
otp_versions.table
|
|
|
|
|
|
* Removed COMPRESS_POINTER and EXPAND_POINTER
|
|
|
|
OTP-12845
* bruce/change-license:
fix errors caused by changed line numbers
Change license text to APLv2
|
|
Init esdp->timer_wheel as NULL to please setup_aux_work_timer().
|
|
|
|
|
