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2016-02-02erts, kernel: Add os:perf_counter functionLukas Larsson
The perf_counter is a very very cheap and high resolution timer that can be used to timestamp system events. It does not have monoticity guarantees, but should on most OS's expose a monotonous time. A special instruction has been created for this counter to further speed up fetching it. OTP-12908
2016-02-02erts: Add ERTS_WRITE_UNLIKELYLukas Larsson
ERTS_WRITE_UNLIKELY can be used to place global variables in a specific section where only data that is very rarely modified sits. This is used to improve cache locality.
2016-02-02Merge branch 'maint'Rickard Green
* maint: Fix inet driver multi timers using new time API
2016-02-02Merge branch 'rickard/tcp-accept-tmo-bug/OTP-13254' into maintRickard Green
* rickard/tcp-accept-tmo-bug/OTP-13254: Fix inet driver multi timers using new time API
2016-02-02Merge branch 'maint'Rickard Green
* maint: Introduce time management in native APIs Introduce time warp safe replacement for safe_fixed option Introduce time warp safe trace timestamp formats Conflicts: erts/emulator/beam/erl_bif_trace.c erts/emulator/beam/erl_driver.h erts/emulator/beam/erl_nif.h erts/emulator/beam/erl_trace.c erts/preloaded/ebin/erlang.beam
2016-02-02Merge branch 'rickard/monotonic-time-improvements/OTP-13222' into maintRickard Green
* rickard/monotonic-time-improvements/OTP-13222: Introduce time management in native APIs Introduce time warp safe replacement for safe_fixed option Introduce time warp safe trace timestamp formats
2016-01-29Remove faulty assertsRickard Green
2016-01-27Merge branch 'maint'Lukas Larsson
* maint: erts: Fix sendfile:ing of large files on FreeBSD
2016-01-27Merge branch 'theom/freebsd-sendfile-patch-2/OTP-13271' into maintLukas Larsson
* theom/freebsd-sendfile-patch-2/OTP-13271: erts: Fix sendfile:ing of large files on FreeBSD
2016-01-27erts: Fix sendfile:ing of large files on FreeBSDJP
If the file was larger than the OS send buffer the call would fail before this patch.
2016-01-27Merge branch 'maint'Lukas Larsson
* maint: efile_drv: logic error in compressed file write
2016-01-27Merge branch 'mikpe/erts/efile-write-compressed-error/OTP-13270' into maintLukas Larsson
* mikpe/erts/efile-write-compressed-error/OTP-13270: efile_drv: logic error in compressed file write
2016-01-26Update preloaded modulesLukas Larsson
2016-01-26Merge branch 'lukas/erts/gc_info/OTP-13265'Lukas Larsson
* lukas/erts/gc_info/OTP-13265: erts: Add garbage_collection_info to process_info/2 Conflicts: erts/emulator/beam/erl_bif_info.c
2016-01-22Merge branch 'maint'Siri Hansen
2016-01-22Merge branch 'siri/document-path-flag/OTP-13060' into maintSiri Hansen
* siri/document-path-flag/OTP-13060: Add documentation of '-path' flag to 'erl'
2016-01-22Merge branch 'maint'Rickard Green
* maint: Fix HL timer hard debug implementation Fix stack alignment problem in ethread test on arm Skip time_SUITE:timestamp on timewarp test
2016-01-22Merge branch 'rickard/test-fix' into maintRickard Green
* rickard/test-fix: Fix HL timer hard debug implementation Fix stack alignment problem in ethread test on arm Skip time_SUITE:timestamp on timewarp test
2016-01-21Fix inet driver multi timers using new time APIRickard Green
2016-01-21Introduce time management in native APIsRickard Green
2016-01-21Merge branch 'bjorn/erts/clean-up-preloaded/OTP-13112'Björn Gustavsson
* bjorn/erts/clean-up-preloaded/OTP-13112: Update preloaded modules erl_prim_loader: Rename release_archives/0 erl_prim_loader: Correct timeout handling for efile erl_prim_loader: Correct purging of the archive cache erl_prim_loader: Remove unused 'cache' field
2016-01-21Update preloaded modulesBjörn Gustavsson
2016-01-20Merge branch 'sverk/safe-purging/OTP-13122'Sverker Eriksson
2016-01-20erts: Update docs for erlang:purge_module/1Sverker Eriksson
2016-01-20erl_prim_loader: Rename release_archives/0Björn Gustavsson
Rename release_archives/0 to purge_archive_cache/0 to make it clearer what it does and what it doesn't do. Also add a comment about its intended purpose. Note that release_archives/0 is not documented and is part of the experimental archive feature. Furthermore, the only uses I could find were in the test suite. I did not find any uses in the external applications relx and rebar3 applications that are known to use archives. Therefore, I think that the increased clarity is worth the small risk of breaking code.
2016-01-20erl_prim_loader: Correct timeout handling for efileBjörn Gustavsson
The timeout routine for efile was never called. While at it, eliminate the n_timeouts field and simplify the logic.
2016-01-20erl_prim_loader: Correct purging of the archive cacheBjörn Gustavsson
prim_do_release_archives/3 can't make up its mind whether the primary archive should be released or not. The key in the process dictionary is kept, while #prim_state.primary_archive is cleared. It seems that intent was the primary archive should be preserved, because the function was intended to be called by a timeout routine every sixth minute (it is not because of a bug in setting up the timeout). Therefore, rewrite the code to preserve the primary archive and simplify it while at it. Also, rename prim_release_archives/1 to prim_purge_cache/0 to make it clearer what it is doing.
2016-01-20erl_prim_loader: Remove unused 'cache' fieldBjörn Gustavsson
The #prim_state.cache' field is unused. The actual cache is kept in the process dictionary.
2016-01-20Merge branch 'hb/stdlib/refine_abstr_types/OTP-10292'Hans Bolinder
* hb/stdlib/refine_abstr_types/OTP-10292: erts: Improve readability of The Abstract Format erts: Improve the documentation of the abstract format stdlib: Update erl_parse(3) stdlib: Refine the types of the abstract format compiler: Improve type and specs hipe: Improve types dialyzer: Improve a type doc: Update a refman example syntax_tools: Correct a type stdlib: Correct a type
2016-01-20Introduce time warp safe replacement for safe_fixed optionRickard Green
The new time warp safe option is safe_fixed_monotonic_time which gives erlang:monotonic_time(). The safe_fixed option was also slightly changed. It now gives erlang:timestamp() instead of erlang:now(). This has however not been documented, so it is considered a compatible change. The above effects both ets, and dets. This commit also include the bugfix OTP-13239 for dets:info(Tab, safe_fixed). The timestamp in the result returned by dets:info(Tab, safe_fixed) was unintentionally broken as a result of the time API rewrites in OTP 18.0.
2016-01-20Introduce time warp safe trace timestamp formatsRickard Green
New timestamp options for trace, sequential trace, and system profile: - monotonic_timestamp - strict_monotonic_timestamp
2016-01-20Merge branch 'maint'Rickard Green
* maint: Fix dirty scheduler check in handle_aux_work
2016-01-20Merge branch 'vinoski/check-awdp-esdp' into maintRickard Green
* vinoski/check-awdp-esdp: Fix dirty scheduler check in handle_aux_work
2016-01-20erts: Improve readability of The Abstract FormatHans Bolinder
More verbose, but hopefully more readable than before.
2016-01-20erts: Improve the documentation of the abstract formatHans Bolinder
2016-01-19Merge branch 'maint'Sverker Eriksson
2016-01-19Merge branch 'sverk/armata-memset-bug' into maintSverker Eriksson
* sverk/armata-memset-bug: erts: Workaround memset bug in test case
2016-01-19Merge branch 'sverk/safe-purging/OTP-13122'Sverker Eriksson
* sverk/safe-purging/OTP-13122: erts: Ignore unexpected messages to erts_code_purger erts: Optimize erlang:check_process_code erts: Refactor check_process_code/3 erts: Make copy_literals more fail safe erts: Move copy_literals/2 from erlang to erts_internal erts: Make erlang:purge_module/1 safe erts: Refactor code:purge/1 and code:soft_purge/1 erts: Introduce erts_code_purger
2016-01-19erts: Ignore unexpected messages to erts_code_purgerSverker Eriksson
2016-01-18Fix dirty scheduler check in handle_aux_workSteve Vinoski
2016-01-14Merge branch 'maint'Sverker Eriksson
2016-01-14Merge branch 'sverk/trace-doc-typo' into maintSverker Eriksson
* sverk/trace-doc-typo: erts: Correct faulty doc for erlang:trace/3
2016-01-14erts: Correct faulty doc for erlang:trace/3Sverker Eriksson
The entire MFA tuple is replaced with 0, not just Arity.
2016-01-14Add documentation of '-path' flag to 'erl'Siri Hansen
This flag replaces the path specified in the boot script. It has always existed, but was earlier only documented in SASL (script).
2016-01-14Merge branch 'maint'Rickard Green
* maint: Do not allow aux work on dirty schedulers
2016-01-14Merge branch 'vinoski/dirty-sched-no-aux-work/OTP-13236' into maintRickard Green
* vinoski/dirty-sched-no-aux-work/OTP-13236: Do not allow aux work on dirty schedulers
2016-01-13erts: Optimize erlang:check_process_codeSverker Eriksson
by ignoring literals. erts_internal:check_process_code will be called again anyway (with option {copy_literals, true}) before the module is actually purged. No need to check literals twice.
2016-01-13erts: Refactor check_process_code/3Sverker Eriksson
Move impl from erlang to erts_internal. Cut and paste.
2016-01-13erts: Make copy_literals more fail safeSverker Eriksson
* Same process must do enable-disable. * System process will force it and never get 'aborted'
2016-01-13erts: Move copy_literals/2 from erlang to erts_internalSverker Eriksson
as it's not a public interface.
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