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2019-03-17Drop rb_mjit_unit from mjit_copy_jobk0kubun
and guard iseq from GC by marking iseq in mjit_copy_job. This is a refactoring for implementing inlining later and should not be fixing or introducing any bugs. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67286 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-03-17Fix typos [ci skip]kazu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67283 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-03-17Change defaults of --jit optionsk0kubun
* --jit-min-calls: 5 -> 10000 --jit-min-calls=5 obviously can compile non hotspot. This was not a problem for MJIT-benchmarks and Optcarrot because the former has very few hot optimiziable methods and the latter is likely to trigger compilation of hotspot by its intensive calls to optimizable hotspot methods and has a very short window to allow limited compilations. In real-world applications, it has more time to compile more methods and it pressures computer's limited resources like icache. We should avoid compiling too many methods. Also compiling many methods exhausts time budget for compilation in one ruby process lifetime and delays the "JIT compaction" of Ruby 2.6. JVM is known to use 1,500 for C1 (client) compiler and 10,000 for C2 (server) compiler for -XX:CompileThreshold by default. https://docs.oracle.com/javase/8/embedded/develop-apps-platforms/codecache.htm When things are called X,000 times, requiring 10,000 can eliminate compilation of methods which are called only once in these X,000 iterations and obviously not hotspot. And in fact things like unicorn-worker-killer restarts unicorn process every 4096 requests. So I felt 10,000 is good for such an environment. * --jit-max-cache: 1000 -> 100 By the same reason stated above, we should not allow compiling many methods especially on MJIT which has a larger overhead due to poor code locality by dlopen and whose code is also likely to be bigger by just inlining many VM instructions with -O3 rather than directly generating low-level code. In JVM -XX:ReservedCodeCacheSize is 32M for reserved and 48M for maximum. --jit-max-cache=1,000 could be closer to it, but in this case MJIT's compilation is slow due to data synchronization between threads (to be improved in Ruby 2.7 though) and we do not want to delay the "JIT compaction" for a long time. So I chose a really conservative number for this, but by having method inlining in the future, wider range could be optimized even with this value. * Optcarrot --disable-gems, --benchmark Lan_Master.nes 12 attempts. No significant impact. | r67276 | r67276 --jit | after --jit | |:-------------------|:------------------|:------------------| | 50.44369263063978 | 72.87390680773056 | 73.47873485047297 | | 50.58788746124193 | 78.06820808947026 | 78.29723420171945 | | 50.77509250801378 | 80.29010348842613 | 78.94689404460769 | | 50.935361702064405 | 80.42796829926374 | 80.39539527351525 | | 51.27352672981195 | 81.98758158033202 | 81.6754198664817 | | 51.720715743242124 | 82.00118535811626 | 82.22960569251283 | | 51.89643169822524 | 82.2290091613556 | 82.5013636146388 | | 51.95895898113868 | 82.37318990939565 | 82.74002377794454 | | 52.10124886807968 | 82.48796686037502 | 83.23354941183932 | | 52.292280637519376 | 83.0265226541066 | 84.01552618012572 | | 52.51856237784144 | 83.8797360318052 | 84.8588319093393 | | 52.65076845986818 | 84.80037351256634 | 85.13577756273656 | * Railsbench `WARMUP=20000 BENCHMARK=1000 bin/bench` of https://github.com/k0kubun/railsbench. It gets closer to --disable=jit. | | r67276 | r67276 | after | | | | --jit | --jit | |:----------|:-------|:-------|:-------| | req/s | 891.3 | 742.2 | 841.5 | |:----------|:-------|:-------|:-------| | 50%ile ms | 1.00 | 1.21 | 1.08 | | 66%ile ms | 1.02 | 1.24 | 1.09 | | 75%ile ms | 1.03 | 1.28 | 1.10 | | 80%ile ms | 1.03 | 1.30 | 1.11 | | 90%ile ms | 1.09 | 1.42 | 1.15 | | 95%ile ms | 1.32 | 1.65 | 1.27 | | 98%ile ms | 4.79 | 2.23 | 1.81 | | 99%ile ms | 5.68 | 7.52 | 6.64 | |100%ile ms | 6.52 | 9.69 | 8.59 | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67277 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-01-10mjit.c: use boolean type for boolean variablesk0kubun
and functions to clarify the intention and make sure it's not used in a surprising way (like using 2, 3, ... other than 0, 1 even while it seems to be a boolean). This is a retry of r66775. It included some typos... git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66778 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-01-10Revert "mjit.c: use boolean type for boolean variables"k0kubun
This reverts commit bb1a1aeab0f2a5fe437c89b841a887ba56653453. We hit something on ci.rvm.jp, reverting until investigation is done. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66776 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-01-10mjit.c: use boolean type for boolean variablesk0kubun
and functions to clarify the intention and make sure it's not used in a surprising way (like using 2, 3, ... other than 0, 1 even while it seems to be a boolean). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66775 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-09Removed never-happening casenobu
get_uniq_filename never returns NULL but raises an exception on failure. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-08Duplicate header name only if foundnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66284 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-08Fix compile error at r66280nobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66283 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-08Give the MJIT header path namenobu
Give the whole MJIT header path name by preloaded shared library mjit_build_dir.so, than building the path from a given directory name and the embedded base name. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66280 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-07Fix memory leak when failed to build pch pathnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66277 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-04mjit.c: remove init_listnormal
It is not needed since we have LIST_HEAD_INIT initializer in mjit_worker.c git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-04unconstify cast to get rid of VC++ warningsusa
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66186 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-03mjit.c: eliminate -save-temps flagk0kubun
in a new variable cc_common_args. `cflags=-save-temps=obj` makes MJIT fail like: https://rubyci.org/logs/www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20181203T095000Z.log.html.gz This rubyci specifies -save-temps=obj in CFLAGS to use update-deps, and the flag is harmful when we want to use -pipe flag. mjit_worker.c: prefer cc_common_args over CC_COMMON_ARGS git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66164 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-03mjit_worker.c: undefine CC_PATHk0kubun
because we mostly use cc_path now and the comment is obsolete (CC_PATH is now absolute path and the TODO is already resolved). mjit.c: use CC_COMMON_ARGS[0] directly git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66162 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-30vm_trace.c: workqueue as thread-safe version of postponed_jobnormal
postponed_job is safe to use in signal handlers, but is not thread-safe for MJIT. Implement a workqueue for MJIT thread-safety. [Bug #15316] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66100 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-27mjit_worker.c: promote mjit_copy_job from functionk0kubun
-local variable to global variable. Consider this case: 1. MJIT worker: dequeue ISeq (stop_worker_p was still FALSE) 2. Ruby thread: call Kernel#exec, which calls mjit_finish(FALSE), sets `stop_worker_p = TRUE`, and fires RUBY_VM_CHECK_INTS() once 3. MJIT worker: register copy job, but found stop_worker_p is TRUE. set `worker_stopped = TRUE` and the thread stops. 4. Function-local job variable expires by the thread stop (this is eliminated by this commit) 5. Ruby thread: find `worker_stopped` becamse TRUE, start Kernel#exec. Kernel#exec fails but exception is rescued. 6. Ruby thread: call RUBY_VM_CHECK_INTS. copy job is dispatched but job variable is already expired. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66035 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-26vm_trace.c: MJIT-limited thread-safety for postponed_jobk0kubun
[Bug #15316] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-26process.c: avoid dlclose before execk0kubun
because JIT-ed code may still be on stack at this time, unlike in ruby_cleanup(). This hopes to fix: (take 2) http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/1480207 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65999 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-26Revert "process.c: try to workaroun SEGV by r65994"k0kubun
This reverts commit 0e6aba22c6b876a36adc39cac5314ce6e626954c. because it didn't help, at all. http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/1480207 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65998 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-26process.c: try to workaroun SEGV by r65994k0kubun
http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/1480173 It tries to print C backtrace but fails. And core file on the server seems to be stopping on the irrelevant place due to its own signal handler for the dump. And I failed to reproduce this SEGV on my machine. I don't know why it's broken, so let me try this change to investigate the reason of SEGV. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65997 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-22mjit.c: avoid running copy job handler after ISeq GCk0kubun
like this http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1471633 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-20mjit.c: fix typos [ci skip]kazu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65825 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-19revert r65807k0kubun
it didn't work. http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1468677 and skips broken tests for now. But this issue should be fixed soon. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65814 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-19process.c: do not run signal handler before forkk0kubun
to prevent from proceeding one for MJIT while it's not safe yet. By that situation, MJIT worker could be waiting for compiler process forever http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1468033 [Bug #15320] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65807 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-18mjit.c: fix deadlock introduced by r65785k0kubun
in mjit_pause() fired by before_fork_ruby(). When calling RUBY_VM_CHECK_INTS() in mjit_pause()'s loop, other threads may call start_worker() which sets `stop_worker_p = FALSE` and it could wait for MJIT worker stop forever even while `stop_worker_p` is FALSE. http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1466333 https://gist.github.com/ko1/a57ef1a03e1c7cfd22f1495e0864b63d http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/1466335 https://gist.github.com/ko1/96e867e36e6b75559b3d926f8c0bdaeb https://app.wercker.com/ruby/ruby/runs/mjit-test1/5bf1221c183106002855989c?step=5bf1225987436a0006192c31 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65790 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-18mjit_worker.c: support MJIT in forked Ruby processk0kubun
by launching MJIT worker thread in child Ruby process. See the comment before `mjit_child_after_fork` for details. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-07mjit_build_dir: separate MJIT_BUILD_DIRnobu
* Makefile.in (mjit_build_dir.so): separate MJIT_BUILD_DIR to eliminate the feature for test-all after installation. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65587 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-06mjit.c: don't use mutex before checking availabilityk0kubun
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-06mjit_worker.c: strictly control MJIT copy jobk0kubun
-available region. reducing risk of SEGV in mjit_copy_job_handler() like http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1446117 I'm not sure which exact part is causing "[BUG] Segmentation fault at 0x0000000000000008" on `(mjit_copy_job_handler+0x12) [0x564a6c4ce632] /home/ko1/ruby/src/trunk-mjit/mjit.c:26`... mjit.c: ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65569 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-06Revert "mjit_build_dir: separate MJIT_BUILD_DIR"nobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-06mjit_build_dir: separate MJIT_BUILD_DIRnobu
* Makefile.in (mjit_build_dir.so): separate MJIT_BUILD_DIR to eliminate the feature for test-all after installation. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65563 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-05Relax MJIT_BUILD_DIR restrictionnobu
* mjit.c (init_header_filename): sticky-mode directory probably would be less unsafe even if it is not owned. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65551 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-05More verbose message at unsafe headernobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65541 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-04Check MJIT_BUILD_DIR strictlynobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65536 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-31mjit: get rid of rb_mjit_unit_node and use ccan/listnormal
rb_mjit_unit can either exist in unit_queue or active_units, but not both. This will make state transitions for event-based MJIT process management easier. v2: recheck unit->iseq after GC wakeup The iseq may be GC-ed while we were waiting for it since we delete the unit from unit_queue during get_from_list git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-31Revert "revert r65471 and include Eric's patch as well"k0kubun
This reverts commit ff5dc2cbbf9e7b67c8579ef166bf6a4755507304. Deadlock: http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1438883 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65474 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-31revert r65471 and include Eric's patch as wellk0kubun
https://bugs.ruby-lang.org/issues/14867#note-112 I wanna touch similar places. To avoid our conflict, let me merge Eric's patch earlier. Let's watch trunk-mjit / trunk-mjit-wait CIs. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65473 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-31Revert "mjit: get rid of rb_mjit_unit_node and use ccan/list"normal
This reverts commit c5177fa8464ac304547e384583f9c287e124d34a. r65468 Many CI failures like: http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/1438415 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65471 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-31mjit: get rid of rb_mjit_unit_node and use ccan/listnormal
rb_mjit_unit can either exist in unit_queue or active_units, but not both. This will make state transitions for event-based MJIT process management easier. [ruby-core:89654] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30mjit.c (free_list): clear .lengthnormal
For robustness against future changes. There should be no impact at the moment,here, but we may call mjit_finish more than once in a process lifetime in the future (implementing "stop" instead of just "pause") git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65443 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-23mjit.c: prevent from accessing expired jobk0kubun
Given that `copy_cache_from_main_thread()` breaks the loop when `stop_worker_p` is TRUE, memory of `job` allocated by `alloca` may be invalid if `stop_worker_p` is already TRUE. mjit_worker.c: explain why `copy_cache_from_main_thread()` should not stop checking `stop_worker_p`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65312 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-21mjit.c: copy call cache values to MJIT workerk0kubun
same as r65275 but for call cache. === Optcarrot Benchmark === $ benchmark-driver benchmark.yml --rbenv 'before::before --disable-gems --jit;after::after --disable-gems --jit' -v --repeat-count 24 before: ruby 2.6.0dev (2018-10-21 trunk 65277) +JIT [x86_64-linux] after: ruby 2.6.0dev (2018-10-21 trunk 65277) +JIT [x86_64-linux] last_commit=mjit.c: copy call cache values to MJIT worker Calculating ------------------------------------- before after Optcarrot Lan_Master.nes 85.372 85.359 fps Comparison: Optcarrot Lan_Master.nes before: 85.4 fps after: 85.4 fps - 1.00x slower git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65279 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-21mjit.c: copy inline cache values to MJIT workerk0kubun
on VM_CHECK_INTS. Letting MJIT worker directly see inline cache which may be being updated could result in inconsistent IC index and serial. mjit_worker.c: request the copy job after dequeue, and receive the result synchronously. tool/ruby_vm/views/_mjit_compile_ivar.erb: use the copied IC mjit_compile.c: change the interface to pass is_entries mjit.h: ditto === Optcarrot Benchmark === Thankfully this didn't have major performance regression. $ benchmark-driver benchmark.yml --rbenv 'before::before --disable-gems --jit;after::after --disable-gems --jit' -v --repeat-count 24 before: ruby 2.6.0dev (2018-10-21 trunk 65263) +JIT [x86_64-linux] after: ruby 2.6.0dev (2018-10-21 trunk 65263) +JIT [x86_64-linux] last_commit=mjit.c: copy inline cache values to MJIT worker Calculating ------------------------------------- before after Optcarrot Lan_Master.nes 85.421 85.454 fps Comparison: Optcarrot Lan_Master.nes after: 85.5 fps before: 85.4 fps - 1.00x slower git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65275 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-20add disabling MJIT features option.ko1
* configure.ac: introduce new configure option `--enable-mjit` and `--disable-mjit`. Default is "enable". `--disable-mjit` disables all of MJIT features so that `ruby --jit` can't enable MJIT. This option affect a macro `USE_MJIT`. This change remove `--enable/disable-install-mjit-header` option. * Makefile.in: introduce the `ENABLE_MJIT` variable. * common.mk: use `ENABLE_MJIT` option. * internal.h: respect `USE_MJIT`. Same as other *.c, *.h. * test/ruby/test_jit.rb: check `ENABLE_MJIT` key of rbconfg.rb. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-19mjit.c: don't let MJIT.pause hang on full active unitsk0kubun
test/ruby/test_rubyvm_mjit.rb: add reproductive test [Bug #15071] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65179 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-07mjit.c: fix obsoleted comment [ci skip]k0kubun
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64931 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-07mjit.h: call compiled code immediatelyk0kubun
after the first compilation on --jit-wait. Previously the assignment to `func` didn't have meaning for the behavior, and the compiled code wasn't called immediately after the synchronous compilation. It wasn't intentional. Fixing this issue without impacting performance without --jit-wait is not so obvious. Adding branch or goto to call func in mjit_exec spoiled the performance without --jit-wait. Instead of that, I called the func inside mjit_wait_call() (former mjit_get_iseq_func()) which is never inlined to mjit_exec(). Thanks to that, this commit has no impact for normal performance. mjit.c: ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64929 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-12mjit.c: reduce the number of variablesk0kubun
in mark_ec_units() to simplify code. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64321 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-11mjit.c: stop defining alias for a very limited usek0kubun
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64307 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-21 11:31:10 +0000