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* kjell/emulator/persistent_term_yield/OTP-15615:
Make persistent_term:put/2 and persistent_term:erase/1 yield
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* rickard/dist-system-limit/OTP-15708:
Fail when we cannot encode term in binary
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Prior to this commit, the functions put/2 and erase/1 in the
persistent_term module did not yield even if the persistent term table
was large (the persistent term table is copied every time put/2 or
erase/1 is called). Furthermore, a call to put/2 or erase/1 did only
consume a single reduction. This commit fixes these problems.
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* lukas/tools/overhead_benchmark:
etp: Fix free de processes check
tools: Add overhead benchmark
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* lukas/OTP-22-rc2/misc-fixes/OTP-15773:
erts: Yield correctly when iterating over distr exit messages
erts: Fix cerl -rr to use correct etp file
erts: Fix etp-process-info to print exiting and free processes
tools: Adjust instrument abort tc to better trigger faults
erts: Fix cleanup of message factory undo
erts: Make dump_SUITE:free_dump not dump via rpc
erts: Add extra debugging to dist frag testcases
erts: Run smaller dist frag test to 32 bit machines
erl_docgen: Remove accidentally merged debug printout
erts: Fix z_SUITE to always look for cerl in ERL_TOP
otp: make top Makefile app target respect TYPE variable
vxworks: Make vxworks configure use environment CFLAGS
erts: Make erts_free debug failure easier to diagnose
erts: Fix gcc warning in to_erl
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Before this fix the process would continue to process
more distributed down or exit messages until it
ran out of reductions instead of being suspended
immediately.
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Doing the dump via rpc can introduce all kins of strange
timing issiues. So instead we dump 5ms after the exit has
been started.
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Because of fragmentation of memory it is not always possible
to allocate enough 320 MB segments on 32-bit so we only sent
smaller packets there.
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This commit fixes an ETS test case that tests the decentralized memory
counter in tables of type ordered_set with the write_concurrency
option turned on. The test case assumed that the memory consumption of
the table would only grow monotonically when terms are
inserted. However, this was not the case when the emulator was
compiled in debug mode as random splits and joins of CA tree nodes
could happen. This commit fixes the test case by disabling random
splits and joins in the tested table.
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* maint:
Updated OTP version
Prepare release
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* maint-20:
Updated OTP version
Prepare release
# Conflicts:
# OTP_VERSION
# erts/doc/src/notes.xml
# erts/vsn.mk
# lib/common_test/doc/src/notes.xml
# lib/common_test/vsn.mk
# lib/erl_interface/doc/src/notes.xml
# lib/erl_interface/vsn.mk
# lib/snmp/doc/src/notes.xml
# lib/snmp/vsn.mk
# lib/ssh/doc/src/notes.xml
# lib/ssh/vsn.mk
# lib/tools/doc/src/notes.xml
# lib/tools/vsn.mk
# make/otp_version_tickets
# otp_versions.table
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* rickard/make-fixes-20/OTP-15657:
Remove own configured RM make variable
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* rickard/make-fixes-20/OTP-15551:
Fix install phase in build system
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* sverker/doc-big-creation-tags/OTP-15766:
erts: Document NEW_PID, NEW_PORT, NEWER_REFERENCE
erts: Add missing docs for DFLAG_MAP_TAG and DFLAG_BIG_CREATION
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'max-au/erts/maint-20/dirty_scheduler_shutdown/PR-2172/OTP-15690' into maint-20
* max-au/erts/maint-20/dirty_scheduler_shutdown/PR-2172/OTP-15690:
erts: Use smp prefix on runq
erts: release dirty runqueue lock before entering endless loop when BEAM is shutting down
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* sverker/ets-no-mbuf-trapping/OTP-15660:
erts: Remove ets traversal yielding if heap fragment
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* bjorn/cuddle-with-tests:
crash dump: Fix printing of "OldBinVHeap unused"
crash dump: Include correct IP for a garbing process
fun_SUITE: Make refc/1 test more reliable
Remove redundant rule from Emakefile
Turn off more optimizations for no_opt modules
test_server_node: Bump compiler compatibility version to OTP 20
erts_test_utils: Bump compiler compatibility version to OTP 20
distribution_SUITE: Remove irrelevant test atom_roundtrip_r16b
bs_construct_SUITE: Rename bs_add_overflow/1 to bs_append_overflow/1
bs_construct_SUITE: Remove troublesome test huge_binary/1
bs_construct_SUITE: Remove incorrect purpose line
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* maint:
Updated OTP version
Prepare release
# Conflicts:
# OTP_VERSION
# make/otp_version_tickets_in_merge
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* sverker/maint-21/doc-big-creation-tags/OTP-15766:
erts: Document NEW_PID, NEW_PORT, NEWER_REFERENCE
erts: Add missing docs for DFLAG_MAP_TAG and DFLAG_BIG_CREATION
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into sverker/maint-21/doc-big-creation-tags/OTP-15766
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During a garbage collection, there could have been an overflow
in the old virtual heap.
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Make sure that the instruction pointer is correct for a garbing
process in a crash dump.
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Wait a little after to make sure that fun holding process to
complete its termination.
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According to the comment, this rule was only needed when communication
with R7B nodes was supported.
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With the new compiler in OTP 22, we have to use more options to
turn off optimizations.
This commit also skips the match_huge_int/1 test case in the
unoptimized clone of the bs_match_int module because it could
crash on memory-constrained computers.
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* maint:
Updated OTP version
Prepare release
# Conflicts:
# OTP_VERSION
# make/otp_version_tickets_in_merge
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* bjorn/erts/measure-process_main/OTP-15620:
Add benchmark
Add erts_debug:interpreter_size/0
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* sverker/node-table-cmp-0-creation-fix:
erts: Revert creation 0 as wildcard in node_table_cmp
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* sverker/revert-big-creation:
Revert "erts: Make DFLAG_BIG_CREATION mandatory"
Revert "erts: Remove old encoding of pids, ports and refs"
Revert "erl_interface: Remove old encoding of pid,port,refs"
Revert "epmd: Support 32-bit creation values in local node"
Revert "jinterface: Remove old encoding of pid,port,refs"
Revert "erl_interface: Support 32-bit creation local cnode"
Revert "erts: Document new EPMD response ALIVE2_X_RESP"
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Communication with OTP R16b has not been supported for a while.
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The test case tests that the bs_append instruction tests for overflow.
Make that clear by renaming the test case.
While at it, also add a few explicit garbage_collection/0 calls to
make it more likeley to run successfully in tight memory situations.
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This test case can fail for the wrong reason (swapping
followed by a timetrap timeout). It is unlikely to fail because
of a real bug.
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This is a partial revert of
bf7c722bd3b30e04a56c2d369fd9f5501a8316d0.
It does not make sense to treat 0 as a wild card in cmp function
for the hash table as creation is part of the hash calculation.
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Previously, all ETS tables used centralized counter variables to keep
track of the number of items stored and the amount of memory
consumed. These counters can cause scalability problems (especially on
big NUMA systems). This commit adds an implementation of a
decentralized counter and modifies the implementation of ETS so that
ETS tables of type ordered_set with write_concurrency enabled use the
decentralized counter. [Experiments][1] indicate that this change
substantially improves the scalability of ETS ordered_set tables with
write_concurrency enabled in scenarios with frequent `ets:insert/2`
and `ets:delete/2` calls.
The new counter is implemented in the module erts_flxctr
(`erts_flxctr.h` and `erts_flxctr.c`). The module has the suffix
flxctr as it contains the implementation of a flexible counter (i.e.,
counter instances can be configured to be either centralized or
decentralized). Counters that are configured to be centralized are
implemented with a single counter variable which is modified with
atomic operations. Decentralized counters are spread over several
cache lines (how many can be configured with the parameter
`+dcg`). The scheduler threads are mapped to cache lines so that there
is no single point of contention when decentralized counters are
updated. The thread progress functionality of the Erlang VM is
utilized to implement support for linearizable snapshots of
decentralized counters. The snapshot functionality is used by the
`ets:info/1` and `ets:info/2` functions.
[1]: http://winsh.me/ets_catree_benchmark/flxctr_res.html
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If it cannot be found in the daily build dir, we try ERL_TOP
incase it is there.
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