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* egil/call-time-trace-patterns:
Fix ops.tab to include i_return_time_trace
Let trace_call_time_SUITE scheduling test be more relaxed
Add documentation for call time breakpoints
Fix bp_hash_put to do hash value after rehash
Extend trace_call_time_SUITE with bif-tests
Fix assertion in trace_pattern for bifs
Teach erlang:system_info/1 to list snifs
Add bif tests to call time trace tests
Teach call time trace patterns to include bifs
Fix BeamInstr code array in export.h
Add trace call_time tests for nifs and bifs
Teach call count tracing to use atomics
Add first phase of trace call time test suite
Add a scheduler array for BpData at BeamInstr[-4]
Add search keys in breakpoints and a searchfunction
Fix BeamInstr for call_time
Teach call_time trace to use intruction pointers
Add return_time trace and PSD deletions
Remove trailing character in beam_bif_load
Fix set_function_break to use correct breakpoint
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OTP-8677 egil/call-time-trace-patterns
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* uw/mnesia-overload:
Enable continuous monitoring of mnesia overload status
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* uw/mnesia-schema-merge:
remove debug printout and accidental variable name reuse
Allow a user_defined function to wrap mnesia_schema:merge_schema()
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* ks/dialyzer:
dialyzer: Build the PLT even if there are unresolved remote types
proplists: Export the type property()
erl_lint: Issue warnings for undefined exported types
Minor fix in a print message
Add handling of unknown types
Add declaration for exported types
Add types and specs; performed some cleanups also
erl_scan: Add declarations for exported types
stdlib: Add declarations for exported types
hipe: Add declarations for exported types
compiler: Add declarations for exported types
syntax_tools: Add declarations for exported types
kernel: Add declaration for exported types
Support -export_type() in dialyzer and erl_types
Add infrastructure for the -export_type() attribute
OTP-8678 ks/dialyzer
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of schedulers
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OTP-8561: Performance improvments in megaco_config:conn_info
OTP-8627: Fix flex lib(s) installation
OTP-8634: Pending counter raise condition
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Without the instruction defined in ops the interpreter will not
compile when using NO_JUMPTABLE.
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Documented call time breakpoints in
- erlang:trace_pattern/3
- erlang:trace_info/2
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If a rehash was done the old hash value was used. This was incorrect.
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erlang:system_info(snifs) lists all static native implemented
functions. The function presents the lists with three tuple
values containing MFAs [{Module, Function, Arity}, ...].
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Call count previously used a global lock for accessing and writing
its counter in the breakpoint. This is now changed to atomics instead.
The change will let call count tracing and cprof to scale better
when increasing the number of schedulers.
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To solve the issue of multiple schedulers constantly updating the
head pointer to the bp data wheel, each scheduler now has its own
entrypoint to the wheel. This head pointer can be updated without
a locking being taken. Previously there were no lock ...
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call_time trace will use instruction pointers instead of
breakpoint data pointers. More costly lookup but the bdt
structure might be deallocated, we do not want that.
Remove unnecessary pattern lock.
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op_i_time_breakpoint is now used
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Call time breakpoint tracing traces per call trace per process.
- Add hashes to support the extra dimension.
- Teach trace_info/2 to handle the extra information dimension.
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Initial commit with a new breakpoint instruction and PSD areas
for temporary time storage during tracing.
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erlang:system_info(multi_scheduling) sometimes erroneously returned enabled
when it should have returned blocked.
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Alignment of scheduler data and run queues were adjusted.
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The runtime system will by default bind schedulers to logical processors
using the default_bind bind type if the amount of schedulers are at least
equal to the amount of logical processors configured, binding of schedulers
is supported, and a CPU topology is available at startup.
NOTE: If the Erlang runtime system is the only operating system process
that binds threads to logical processors, this improves the performance of
the runtime system. However, if other operating system processes (as for
example another Erlang runtime system) also bind threads to logical
processors, there might be a performance penalty instead. If this is the
case you, are are advised to unbind the schedulers using the <seealso
marker="erl#+sbt">+sbtu</seealso> command line argument, or by invoking
<seealso
marker="erlang#system_flag_scheduler_bind_type">erlang:system_flag(schedule
r_bind_type, unbound)</seealso>.
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New NIF features:
Send messages from a NIF, or from thread created by NIF, to any local
process (enif_send)
Store terms between NIF calls (enif_alloc_env, enif_make_copy)
Create binary terms with user defined memory management
(enif_make_resource_binary)
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While at it, added some types to a record
and did some cleanups suggested by tidier.
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erl_lint has been updated so that it takes the new -export_type()
attribute into account.
This means:
- do not complain about types which are defined but nowhere used in the
module but exported to other modules
- check that all types which are exported are indeed defined in the module
- warn when there are multiple occurrences of exported types.
In doing this change, I've also taken the liberty to introduce many types and
specs for functions of this module and to do small cleanups here and there.
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The Erlang code preprocessor (epp) did not correctly handle premature
end-of-input when defining macros. This bug, introduced in STDLIB 1.16, has
been fixed.
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