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Implement Multi-tier JIT (#1774)

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Implement 2-level Multi-tier JIT engine: tier-up from Fast JIT to LLVM JIT to
get quick cold startup by Fast JIT and better performance by gradually
switching to LLVM JIT when the LLVM JIT functions are compiled by the
backend threads.

Refer to:
https://github.com/bytecodealliance/wasm-micro-runtime/issues/1302
This commit is contained in:
Wenyong Huang
2022-12-19 11:24:46 +08:00
parent 7db49db777
commit e8ce4c542e
21 changed files with 2180 additions and 338 deletions
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18
build-scripts/config_common.cmake
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@ -85,6 +85,13 @@ if (NOT WAMR_BUILD_AOT EQUAL 1)
endif ()
endif ()
if (WAMR_BUILD_FAST_JIT EQUAL 1)
if (NOT WAMR_BUILD_LAZY_JIT EQUAL 0)
# Enable Lazy JIT by default
set (WAMR_BUILD_LAZY_JIT 1)
endif ()
endif ()
if (WAMR_BUILD_JIT EQUAL 1)
if (NOT WAMR_BUILD_LAZY_JIT EQUAL 0)
# Enable Lazy JIT by default
@ -136,7 +143,12 @@ else ()
message (" WAMR AOT disabled")
endif ()
if (WAMR_BUILD_FAST_JIT EQUAL 1)
message (" WAMR Fast JIT enabled")
if (WAMR_BUILD_LAZY_JIT EQUAL 1)
add_definitions("-DWASM_ENABLE_LAZY_JIT=1")
message (" WAMR Fast JIT enabled with Lazy Compilation")
else ()
message (" WAMR Fast JIT enabled with Eager Compilation")
endif ()
else ()
message (" WAMR Fast JIT disabled")
endif ()
@ -151,6 +163,10 @@ if (WAMR_BUILD_JIT EQUAL 1)
else ()
message (" WAMR LLVM ORC JIT disabled")
endif ()
if (WAMR_BUILD_FAST_JIT EQUAL 1 AND WAMR_BUILD_JIT EQUAL 1
AND WAMR_BUILD_LAZY_JIT EQUAL 1)
message (" Multi-tier JIT enabled")
endif ()
if (WAMR_BUILD_LIBC_BUILTIN EQUAL 1)
message (" Libc builtin enabled")
else ()