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authork0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-10-21 13:21:28 +0000
committerk0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-10-21 13:21:28 +0000
commit1b5aa4f5161972d3598b738312e771c6706a7af6 (patch)
tree0960e925b2bb2d8fda66845e56d8d36da599eb1f /mjit.c
parente01c9c743f467b7ba9b4a4416f04f967f3e9a6ea (diff)
mjit.c: copy inline cache values to MJIT worker
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
Diffstat (limited to 'mjit.c')
-rw-r--r--mjit.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/mjit.c b/mjit.c
index 88df66b..f2b2581 100644
--- a/mjit.c
+++ b/mjit.c
@@ -20,6 +20,19 @@
#include "constant.h"
#include "id_table.h"
+/* Copy ISeq's states so that race condition does not happen on compilation. */
+static void
+mjit_copy_job_handler(void *data)
+{
+ struct mjit_copy_job *job = (struct mjit_copy_job *)data;
+ memcpy(job->is_entries, job->body->is_entries, sizeof(union iseq_inline_storage_entry) * job->body->is_size);
+
+ CRITICAL_SECTION_START(3, "in MJIT copy job wait");
+ job->finish_p = TRUE;
+ rb_native_cond_broadcast(&mjit_worker_wakeup);
+ CRITICAL_SECTION_FINISH(3, "in MJIT copy job wait");
+}
+
extern int rb_thread_create_mjit_thread(void (*worker_func)(void));
/* Return an unique file name in /tmp with PREFIX and SUFFIX and