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2023-12-20KQueue support for M:N threadsJP Camara
* Allows macOS users to use M:N threads (and technically FreeBSD, though it has not been verified on FreeBSD) * Include sys/event.h header check for macros, and include sys/event.h when present * Rename epoll_fd to more generic kq_fd (Kernel event Queue) for use by both epoll and kqueue * MAP_STACK is not available on macOS so conditionall apply it to mmap flags * Set fd to close on exec * Log debug messages specific to kqueue and epoll on creation * close_invalidate raises an error for the kqueue fd on child process fork. It's unclear rn if that's a bug, or if it's kqueue specific behavior Use kq with rb_thread_wait_for_single_fd * Only platforms with `USE_POLL` (linux) had changes applied to take advantage of kernel event queues. It needed to be applied to the `select` so that kqueue could be properly applied * Clean up kqueue specific code and make sure only flags that were actually set are removed (or an error is raised) * Also handle kevent specific errnos, since most don't apply from epoll to kqueue * Use the more platform standard close-on-exec approach of `fcntl` and `FD_CLOEXEC`. The io-event gem uses `ioctl`, but fcntl seems to be the recommended choice. It is also what Go, Bun, and Libuv use * We're making changes in this file anyways - may as well fix a couple spelling mistakes while here Make sure FD_CLOEXEC carries over in dup * Otherwise the kqueue descriptor should have FD_CLOEXEC, but doesn't and fails in assert_close_on_exec
2023-12-14[DOC] Adjust some new features wording/examples. (#9183)Victor Shepelev
* Reword Range#overlap? docs last paragraph. * Docs: add explanation about Queue#freeze * Docs: Add :rescue event docs for TracePoint * Docs: Enhance Module#set_temporary_name documentation * Docs: Slightly expand Process::Status deprecations * Fix MatchData#named_captures rendering glitch * Improve Dir.fchdir examples * Adjust Refinement#target docs
2023-11-22Embed exec_arg objectsJean Boussier
They are very ephemeral, so avoiding the malloc churn is desirable.
2023-11-21Make Process::Status embeddedJean Boussier
These are not very common, but they're very easy to convert.
2023-11-08[DOC] RDoc for module Process (#8847)Burdette Lamar
2023-11-06Align comment [ci skip]Nobuyoshi Nakada
2023-10-12M:N thread scheduler for RactorsKoichi Sasada
This patch introduce M:N thread scheduler for Ractor system. In general, M:N thread scheduler employs N native threads (OS threads) to manage M user-level threads (Ruby threads in this case). On the Ruby interpreter, 1 native thread is provided for 1 Ractor and all Ruby threads are managed by the native thread. From Ruby 1.9, the interpreter uses 1:1 thread scheduler which means 1 Ruby thread has 1 native thread. M:N scheduler change this strategy. Because of compatibility issue (and stableness issue of the implementation) main Ractor doesn't use M:N scheduler on default. On the other words, threads on the main Ractor will be managed with 1:1 thread scheduler. There are additional settings by environment variables: `RUBY_MN_THREADS=1` enables M:N thread scheduler on the main ractor. Note that non-main ractors use the M:N scheduler without this configuration. With this configuration, single ractor applications run threads on M:1 thread scheduler (green threads, user-level threads). `RUBY_MAX_CPU=n` specifies maximum number of native threads for M:N scheduler (default: 8). This patch will be reverted soon if non-easy issues are found. [Bug #19842]
2023-10-03[DOC] State the precision of `Process.times` as platform-definedNobuyoshi Nakada
Remove the bad example that can lead to misunderstanding as if this precision is defined in Ruby.
2023-10-01[DOC] Another example for spawn (#8575)Burdette Lamar
2023-09-27[DOC] Fix minor inconsistenciesBurdetteLamar
2023-09-26[DOC] Fix link in process.cPeter Zhu
2023-09-26[DOC] Refactor doc in process.cBurdetteLamar
2023-09-15Process.warmup: invoke `malloc_trim` if availableJean Boussier
Similar to releasing free GC pages, releasing free malloc pages reduce the amount of page faults post fork.
2023-09-14[Bug #19868] Deprecate `Process::Status#&` and `Process::Status#>>`Nobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/8392
2023-09-14[Bug #19868] Suggest other Process::Status method for `&` and `>>`Nobuyoshi Nakada
`Process::Status#&` and `Process::Status#>>` are provided only for the backward compatibility with older Ruby than 1.8 where `$?` was a `Fixnum`, and the knowledge about internals of system dependent macros is necessary to use them. Modern programs and libraries should not need these methods. Notes: Merged: https://github.com/ruby/ruby/pull/8392
2023-09-14Negative value to Process::Status method for compatibilityNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/8392
2023-09-12[DOC] RDoc for Process::Status (#8416)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-09-07[DOC] Fix up Process::Status#>>Nobuyoshi Nakada
2023-09-06[DOC] Rdoc for Process::Status (#8386)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-09-05[DOC] Fix for RDoc for Process.kill (#8370)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-09-05[DOC] Fix up markupNobuyoshi Nakada
2023-09-05[DOC] Fix signal listNobuyoshi Nakada
- Signal names can be symbols, as stated above. - Supported signals and those values are platform dependent. - Key sequences to send signal are configurable. - Fix description of signal 0. Co-authored-by: Peter Zhu <[email protected]> Notes: Merged: https://github.com/ruby/ruby/pull/8367 Merged-By: nobu <[email protected]>
2023-09-04[DOC] RDoc for process.c (#8366)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-09-03[DOC] Process doc (#8363)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-09-02[DOC] RDoc for process.cBurdetteLamar
Notes: Merged: https://github.com/ruby/ruby/pull/8361
2023-09-02[DOC] RDoc for process.c (#8358)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-09-02[DOC] RDoc for process.c (#8353)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-31[DOC] RDoc for #spawn (#8342)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-31[DOC] RDoc for Kernel#system (#8309)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-29Expose `rb_process_status_wait` and hide `rb_process_status_waitv`. (#8316)Samuel Williams
Notes: Merged-By: ioquatix <[email protected]>
2023-08-29Validate the typed data before dereferencing the internal struct. (#8315)Samuel Williams
Notes: Merged-By: ioquatix <[email protected]>
2023-08-27[DOC] More on method exec (#8302)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-27Free all empty heap pages in Process.warmupPeter Zhu
This commit adds `free_empty_pages` which frees all empty heap pages and moves the number of pages freed to the allocatable pages counter. This is used in Process.warmup to improve performance because page invalidation from copy-on-write is slower than allocating a new page. Notes: Merged: https://github.com/ruby/ruby/pull/8257
2023-08-24[DOC] RDoc for Process (#8282)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-24[DOC] Process doc (#8279)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-24Fix compile error on older systems without clock_get*Bo Anderson
Notes: Merged: https://github.com/ruby/ruby/pull/8256
2023-08-23[DOC] RDoc for Process (#8253)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-07[DOC] RDoc for Process (#8179)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-07-31RDoc for module Process (#8141)Burdette Lamar
Notes: Merged-By: peterzhu2118 <[email protected]>
2023-08-01[DOC] Update description of `Process.daemon` argumentsNobuyoshi Nakada
These arguments can only be `true` or `false` now. Also add markups.
2023-07-26Process.warmup: precompute strings coderangeJean Boussier
This both save time for when it will be eventually needed, and avoid mutating heap pages after a potential fork. Instrumenting some large Rails app, I've witnessed up to 58% of String instances having their coderange still unknown. Notes: Merged: https://github.com/ruby/ruby/pull/8112
2023-07-17Implement Process.warmupJean Boussier
[Feature #18885] For now, the optimizations performed are: - Run a major GC - Compact the heap - Promote all surviving objects to oldgen Other optimizations may follow. Notes: Merged: https://github.com/ruby/ruby/pull/7662
2023-07-10Use `File::NULL` instead of hard coded null device namesNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/8050
2023-06-01Hide the usage of `rb_io_t` where possible. (#7880)Samuel Williams
This retries the compatible parts of the previously reverted PR so we can continue to update related code without breaking backwards compatibility. Notes: Merged-By: ioquatix <[email protected]>
2023-06-01Revert "Hide most of the implementation of `struct rb_io`. (#6511)"NARUSE, Yui
This reverts commit 18e55fc1e1ec20e8f3166e3059e76c885fc9f8f2. fix [Bug #19704] https://bugs.ruby-lang.org/issues/19704 This breaks compatibility for extension libraries. Such changes need a discussion.
2023-05-30Hide most of the implementation of `struct rb_io`. (#6511)Samuel Williams
* Add rb_io_path and rb_io_open_descriptor. * Use rb_io_open_descriptor to create PTY objects * Rename FMODE_PREP -> FMODE_EXTERNAL and expose it FMODE_PREP I believe refers to the concept of a "pre-prepared" file, but FMODE_EXTERNAL is clearer about what the file descriptor represents and aligns with language in the IO::Buffer module. * Ensure that rb_io_open_descriptor closes the FD if it fails If FMODE_EXTERNAL is not set, then it's guaranteed that Ruby will be responsible for closing your file, eventually, if you pass it to rb_io_open_descriptor, even if it raises an exception. * Rename IS_EXTERNAL_FD -> RUBY_IO_EXTERNAL_P * Expose `rb_io_closed_p`. * Add `rb_io_mode` to get IO mode. --------- Co-authored-by: KJ Tsanaktsidis <[email protected]> Notes: Merged-By: ioquatix <[email protected]>
2023-05-21Put `rb_fork` back into process.cNobuyoshi Nakada
Now, calling `rb_fork` directly breaks the PID cache and the timer thread, so must use `rb_fork_ruby` or similar instead. Notes: Merged: https://github.com/ruby/ruby/pull/7834
2023-04-13[Feature #19590] Show the invalid clock argumentNobuyoshi Nakada
Include the failed clock argument in the error message from `Process.clock_gettime` and `Process.clock_getres`. Notes: Merged: https://github.com/ruby/ruby/pull/7687
2023-04-05[DOC] Clarify behavior of abort() with no argumentDaniel DeLorme
Since Ruby 2.7 it prints the message and backtrace of $! Fixes [Bug #19578] Notes: Merged: https://github.com/ruby/ruby/pull/7664
2023-04-04Revert "Fix transient heap mode"Aaron Patterson
This reverts commit 87253d047ce35e7836b6f97edbb4f819879a3b25. Revert "Implement `Process.warmup`" This reverts commit ba6ccd871442f55080bffd53e33678c0726787d2.
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