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* lukas/erts/etp-processes-ports-optimization:
erts: Optimize etp-processes and etp-ports
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Not calculating the max, table and invalid addresses
each loop speeds up iterating through the processes list
by about 5x.
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Minimum known timeout position is saved in bot far and near
wheel. This information is used to avoid scanning from current
position in the cases were we know the minimum timeout position.
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Magic references are *intentionally* indistinguishable from ordinary
references for the Erlang software. Magic references do not change
the language, and are intended as a pure runtime internal optimization.
An ordinary reference is typically used as a key in some table. A
magic reference has a direct pointer to a reference counted magic
binary. This makes it possible to implement various things without
having to do lookups in a table, but instead access the data directly.
Besides very fast lookups this can also improve scalability by
removing a potentially contended table. A couple of examples of
planned future usage of magic references are ETS table identifiers,
and BIF timer identifiers.
Besides future optimizations using magic references it should also
be possible to replace the exposed magic binary cludge with magic
references. That is, magic binaries that are exposed as empty
binaries to the Erlang software.
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* maint:
Update etp-commands for dirty schedulers
Fix scheduling of system tasks on processes executing dirty
Fix call time tracing with dirty schedulers
Fix send of exit signal to process executing dirty
Fix dirty scheduler process priority
Fix alloc-util hard-debug
Silence debug warning when no beam jump table is used with dirty schedulers
Fix check_process_code() when NifExport is in use
Fix GC when NifExport is in use
Fix saving of original arguments when rescheduling via NifExport
Conflicts:
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/erl_nif.c
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OTP-14051
* rickard/dirty-scheduling-fixes:
Update etp-commands for dirty schedulers
Fix scheduling of system tasks on processes executing dirty
Fix call time tracing with dirty schedulers
Fix send of exit signal to process executing dirty
Fix dirty scheduler process priority
Fix alloc-util hard-debug
Silence debug warning when no beam jump table is used with dirty schedulers
Conflicts:
erts/etc/unix/etp-commands.in
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Specifically etp-stacktrace/stackdump/process-info have been changed
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This commit adds two new structs to be used to represent
erlang code in erts.
ErtsCodeInfo is used to describe the i_func_info header
that is part of all Export entries and the prelude of
each function. This replaces all the BeamInstr * that
were previously used to point to these locations.
After this change the code should never use BeamInstr *
with offsets to figure out different parts of the
func_info header.
ErtsCodeMFA is a struct that is used to descripe a
MFA in code. It is used within ErtsCodeInfo and also
in Process->current.
All function that previously took Eterm * or BeamInstr *
to identify a MFA now use the ErtsCodeMFA or ErtsCodeInfo
where appropriate.
The code has been tested to work when adding a new field to the
ErtsCodeInfo struct, but some updates are needed in ops.tab to
make it work.
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* henrik/update-copyrightyear:
update copyright-year
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for a correct (non)value regardless of build type.
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* sverk/etp-check-beam-ranges:
erts: Add gdb command etp-check-beam-ranges
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* sverk/bin-alloc-refactor:
erts: Fix gdb command etp-carrier-blocks for 32-bit
erts: Refactor binary allocation interface to also initialize Binary
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* sverk/etp-alloc-stats:
erts: Fix documentation for no of default allocator instances
erts: Add etp-alloc-stats and etp-alloc-instances
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fdb350a4 increased MI_FUNCTIONS to 13
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* sverk/ets-delete-unfix-race/OTP-11892:
Fix race between ETS table deletion and unfixation
erts: Add etp commands for alloc_util block and carrier inspection
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etp-block
etp-block2mbc
etp-carrier-blocks
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This port has support for both non-smp and smp.
It contains a new way to do io checking in which erts_poll_wait
receives the payload of the polled entity. This has implications
for all linked-in drivers.
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Being able to disable garbage collection over context
switches vastly simplifies implementation of yielding
native code that builds large or complex data structures
on the heap. This since the heap can be left in an
inconsistent state over the context switch.
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