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* sverk/hamt-overestimate/OTP-12585:
erts: Add test map_SUITE:t_hashmap_balance
erts: Fix hashmap overestimation
erts: Silence valgrind warning in nif_SUITE.c
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* sverk/dec_term-bin-overhead/OTP-12554:
erts: Add missing binary offheap overhead in binary_to_term
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Old overestimation assumed an average of k/3 nodes.
This can be bad for large maps (with tight standard deviations)
as the average vary between 0.3*k and up to almost 0.4*k.
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The old time API is based on erlang:now/0. The major issue with
erlang:now/0 is that it was intended to be used for so many
unrelated things. This tied these unrelated operations together
and unnecessarily caused performance, scalability as well as
accuracy, and precision issues for operations that do not need
to have such issues. The new API spreads different functionality
over multiple functions in order to improve on this.
The new API consists of a number of new BIFs:
- erlang:convert_time_unit/3
- erlang:monotonic_time/0
- erlang:monotonic_time/1
- erlang:system_time/0
- erlang:system_time/1
- erlang:time_offset/0
- erlang:time_offset/1
- erlang:timestamp/0
- erlang:unique_integer/0
- erlang:unique_integer/1
- os:system_time/0
- os:system_time/1
and a number of extensions of existing BIFs:
- erlang:monitor(time_offset, clock_service)
- erlang:system_flag(time_offset, finalize)
- erlang:system_info(os_monotonic_time_source)
- erlang:system_info(time_offset)
- erlang:system_info(time_warp_mode)
- erlang:system_info(time_correction)
- erlang:system_info(start_time)
See the "Time and Time Correction in Erlang" chapter of the
ERTS User's Guide for more information.
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* nox/fix-port_info-race:
Fix a race condition when calling port_info/1
OTP-12587
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Hmm, seems like gcc (4.4.3 at least) can switch the order
of an &&-expression and do the last condition first if it
think it's more efficient (and without side effects I hope).
Which led to valgrind complaining about 'prev_ret' being used
uninitialized in this case.
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* egil/maps/hamt/OTP-12585: (113 commits)
erts: Fix bug in ESTACK and WSTACK
kernel: Add spec for erts_debug:map_info/1
mnesia: Update mnesia tests to reflect new ETS hash
erts: Ensure maps uses _rel functions in halfword
erts: Do not treat errors as fatal in erl_printf_term
erts: Update preloaded erts_internal.beam
erts: Add map decomposition wrappers
erts: Ensure halfword has correct temp-heap for maps
hipe: Handle separate hashmap tag correctly
erts: Fix map bug in dec_term for 32-bit debug VM
stdlib: Update qlc tests to reflect new ETS hash
stdlib: Remove obsolete hashmap references in io_lib
erts: Enhance maps ordering tests
hipe: Fix maps sort order testcase
erts: Remove unused variable in crashdump creation
erts: Fix typo in copy_struct for halfword emulator
erts: Restrict GCC intrinsics by compiler version
erts: Fix windows bug in hashmap_info
erts: Fix typo in make_hash2 for 32-bit arch
Fix beam_load assert
...
Conflicts:
erts/emulator/beam/bif.tab
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The [ew]default field would get uninitialised when the stack was
saved and later restored.
Detected by valgrind.
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* erts_internal:map_type/1
* erts_internal:map_hashmap_children/1
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Adding ERTS_SWORD_MAX to a pointer does not work
as a way to disable a bound check.
Remove the hp_end from ErtsHeapFactory as it isn't really used anyway.
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* essen/zlib-export-types:
Export useful types from zlib module
OTP-12584
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if opts was null the name was not set
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* egil/fix-beam_load-assert:
erts: Fix beam_load assert
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* nlmills/cleanup:
Remove unused time macros from efile_drv
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* wmalik/minor-fixes:
Fix proc_lib doc
Remove commented out code
Fix make_hash description
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This variable hold the values returned by erlang:port_info/1 and
shouldn't be static.
Reported-by: Heinz Nikolaus Gies
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* maint:
Make access to control_flags safe in non-smp emulator
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* rickard/port_control_flags_crash/OTP-12544:
Make access to control_flags safe in non-smp emulator
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* maint:
Fix missing quotation in LM_FIND_EMU_CC
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* rickard/find_emu_cc/OTP-12388:
Fix missing quotation in LM_FIND_EMU_CC
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* essen/zlib-windowbits:
Update zlib:zwindowbits/0 type to accept 8 and -8
OTP-12564
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This reverts commit af972aaf14a5f53510e692f48f672f7e6805ee6d.
Conflicts:
lib/ssh/test/ssh_basic_SUITE.erl
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* nox/ets-update_counter-4:
Create new BIF ets:update_counter/4
Allow 4-ary BIFs
OTP-12563
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* nlmills/docfix:
Correct typo in erlang(3) documentation
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Add a check to enif_make_double to see if its double argument is
infinity or NaN, returning a badarg exception if it is. Change the
erl_nif documentation to specify that enif_make_double returns a
badarg exception if its double argument is either infinity or NaN. Add
tests to nif_SUITE for this change.
Add checks to the enif_make* functions for atoms to prevent the
creation of atoms whose name lengths are greater than the allowed
maximum atom length. The enif_make_atom and enif_make_atom_len
functions now return a badarg exception if the input string is too
long. The enif_make_existing_atom and enif_make_existing_atom_len
functions return false if the input string is too long. Change the
erl_nif documentation to reflect the changes to these functions. Add
tests to nif_SUITE for these changes.
Add a field to ErlNifEnv to track that a NIF has raised an exception
via enif_make_badarg. If a NIF calls enif_make_badarg but then ignores
its return value and instead tries to return a non-exception term as
its return value, the runtime still raises a badarg. This is needed to
prevent enif_make_badarg values resulting from calls to
enif_make_double, enif_make_atom, or enif_make_atom_len from being
erroneously stored within other terms and returned from a NIF. Calling
enif_make_badarg but not returning its return value has been
documented as being illegal ever since enif_make_badarg was added, but
the runtime has not enforced it until now. Add tests for regular and
dirty NIFs to ensure that calls to enif_make_badarg result in badarg
exceptions even if a NIF fails to return the result of
enif_make_badarg as its return value. Add documentation to
enif_make_badarg to specify that calling it raises a badarg even if a
NIF ignores its return value.
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All uses of these macros were removed in
commit c3a615aa2da09bc3a0575e973959f800460a63de.
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Intrinsics __builtin_clz and __builtin_popcount are only valid on
GCC version 3.4 and above.
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undefined symbol 'MAX'
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Use small limit 3 in debug case
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