diff options
author | k0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-10-07 04:17:59 +0000 |
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committer | k0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-10-07 04:17:59 +0000 |
commit | ef2ef7761b5a0387b3e91687bd314654d6de272f (patch) | |
tree | 829b60da286751ccf0b8560cee81b6f237722a27 | |
parent | 24685ec25c039399c8394ae5ac323fb83e2301a0 (diff) | |
download | ruby-ef2ef7761b5a0387b3e91687bd314654d6de272f.tar.gz |
mjit.h: call compiled code immediately
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
-rw-r--r-- | mjit.c | 18 | ||||
-rw-r--r-- | mjit.h | 4 |
2 files changed, 13 insertions, 9 deletions
@@ -306,8 +306,8 @@ mjit_add_iseq_to_process(const rb_iseq_t *iseq) /* Wait for JIT compilation finish for --jit-wait. This should only return a function pointer or NOT_COMPILED_JIT_ISEQ_FUNC. */ -mjit_func_t -mjit_get_iseq_func(struct rb_iseq_constant_body *body) +VALUE +mjit_wait_call(rb_execution_context_t *ec, struct rb_iseq_constant_body *body) { struct timeval tv; int tries = 0; @@ -316,19 +316,23 @@ mjit_get_iseq_func(struct rb_iseq_constant_body *body) while (body->jit_func == (mjit_func_t)NOT_READY_JIT_ISEQ_FUNC) { tries++; if (tries / 1000 > MJIT_WAIT_TIMEOUT_SECONDS || pch_status == PCH_FAILED) { - CRITICAL_SECTION_START(3, "in mjit_get_iseq_func to set jit_func"); + CRITICAL_SECTION_START(3, "in mjit_wait_call to set jit_func"); body->jit_func = (mjit_func_t)NOT_COMPILED_JIT_ISEQ_FUNC; /* JIT worker seems dead. Give up. */ - CRITICAL_SECTION_FINISH(3, "in mjit_get_iseq_func to set jit_func"); + CRITICAL_SECTION_FINISH(3, "in mjit_wait_call to set jit_func"); mjit_warning("timed out to wait for JIT finish"); break; } - CRITICAL_SECTION_START(3, "in mjit_get_iseq_func for a client wakeup"); + CRITICAL_SECTION_START(3, "in mjit_wait_call for a client wakeup"); rb_native_cond_broadcast(&mjit_worker_wakeup); - CRITICAL_SECTION_FINISH(3, "in mjit_get_iseq_func for a client wakeup"); + CRITICAL_SECTION_FINISH(3, "in mjit_wait_call for a client wakeup"); rb_thread_wait_for(tv); } - return body->jit_func; + + if ((uintptr_t)body->jit_func <= (uintptr_t)LAST_JIT_ISEQ_FUNC) { + return Qundef; + } + return body->jit_func(ec, ec->cfp); } extern VALUE ruby_archlibdir_path, ruby_prefix_path; @@ -59,7 +59,7 @@ RUBY_EXTERN struct mjit_options mjit_opts; RUBY_EXTERN int mjit_call_p; extern void mjit_add_iseq_to_process(const rb_iseq_t *iseq); -extern mjit_func_t mjit_get_iseq_func(struct rb_iseq_constant_body *body); +extern VALUE mjit_wait_call(rb_execution_context_t *ec, struct rb_iseq_constant_body *body); RUBY_SYMBOL_EXPORT_END extern int mjit_compile(FILE *f, const struct rb_iseq_constant_body *body, const char *funcname); @@ -110,7 +110,7 @@ mjit_exec(rb_execution_context_t *ec) if (total_calls == mjit_opts.min_calls && mjit_target_iseq_p(body)) { mjit_add_iseq_to_process(iseq); if (UNLIKELY(mjit_opts.wait)) { - func = mjit_get_iseq_func(body); + return mjit_wait_call(ec, body); } } return Qundef; |