Maybe you should use --extra_code flag to snapshot external js file. and how do you handle DOM objects used in jquery? I don't think mksnapshot can hanlde this case.
在 2014年2月28日星期五UTC+8上午1时16分22秒，Zhao Cheng写道： > > No, it is still unsolved. The snapshot was created with the mksnapshot > tool which was created when building V8. > > Cheng > > > On Thu, Feb 27, 2014 at 6:05 AM, Yi Shen <[email protected] <javascript:> > > wrote: > >> Hi Zhao Cheng, >> >> Have you solved this problem? Could you let me know how you create the >> snapshot for jquery? >> >> Thanks, >> Yi >> >> >> On Wednesday, February 5, 2014 7:30:28 PM UTC-8, Zhao Cheng wrote: >>> >>> Hi v8-users, >>> >>> I'm working on a desktop application which is very sensible to the >>> startup time, I saw that V8's snapshot feature is exactly for this purpose, >>> so I patched V8 to make it accept external snapshot files. >>> >>> For small snapshot files this worked perfectly, but after I tried with >>> large extra js files (like jquery), the v8::Initialize would fail with >>> following stack trace: >>> >>> >>> Current executable set to './out/Release/v8_shell' (x86_64). >>> (lldb) run >>> Process 22132 launched: './out/Release/v8_shell' (x86_64) >>> Process 22132 stopped >>> * thread #1: tid = 0x2f53c, 0x00000001000876fd >>> v8_shell`v8::internal::Heap::ClearJSFunctionResultCaches() [inlined] >>> v8::internal::FixedArray::get(context=0x0000000000000000, index=56) at >>> objects-inl.h:1956, queue = 'com.apple.main-thread, stop reason = >>> EXC_BAD_ACCESS (code=1, address=0x1cf) >>> frame #0: 0x00000001000876fd >>> v8_shell`v8::internal::Heap::ClearJSFunctionResultCaches() >>> [inlined] v8::internal::FixedArray::get(context=0x0000000000000000, >>> index=56) at objects-inl.h:1956 >>> 1953 >>> 1954 Object* FixedArray::get(int index) { >>> 1955 ASSERT(index >= 0 && index < this->length()); >>> -> 1956 return READ_FIELD(this, kHeaderSize + index * kPointerSize); >>> 1957 } >>> 1958 >>> 1959 >>> (lldb) bt >>> * thread #1: tid = 0x2f53c, 0x00000001000876fd >>> v8_shell`v8::internal::Heap::ClearJSFunctionResultCaches() [inlined] >>> v8::internal::FixedArray::get(context=0x0000000000000000, index=56) at >>> objects-inl.h:1956, queue = 'com.apple.main-thread, stop reason = >>> EXC_BAD_ACCESS (code=1, address=0x1cf) >>> frame #0: 0x00000001000876fd >>> v8_shell`v8::internal::Heap::ClearJSFunctionResultCaches() >>> [inlined] v8::internal::FixedArray::get(context=0x0000000000000000, >>> index=56) at objects-inl.h:1956 >>> frame #1: 0x00000001000876fd v8_shell`v8::internal::Heap:: >>> ClearJSFunctionResultCaches(this=<unavailable>) + 93 at heap.cc:850 >>> frame #2: 0x0000000100088e5f v8_shell`v8::internal::Heap:: >>> CollectGarbage(v8::internal::AllocationSpace, >>> v8::internal::GarbageCollector, >>> char const*, char const*) [inlined] v8::internal::Heap:: >>> GarbageCollectionPrologue(this=<unavailable>) + 24 at heap.cc:440 >>> frame #3: 0x0000000100088e47 v8_shell`v8::internal::Heap:: >>> CollectGarbage(this=0x0000000101803210, space=<unavailable>, >>> collector=<unavailable>, gc_reason=0x00000001003a1f58, >>> collector_reason=<unavailable>) + 263 at heap.cc:676 >>> frame #4: 0x0000000100089bad >>> v8_shell`v8::internal::Heap::ReserveSpace(int*, >>> unsigned char**) [inlined] >>> v8::internal::Heap::CollectGarbage(this=0x0000000101803210, >>> gc_reason=<unavailable>) + 109 at heap-inl.h:546 >>> frame #5: 0x0000000100089b81 >>> v8_shell`v8::internal::Heap::ReserveSpace(int*, >>> unsigned char**) [inlined] v8::internal::AbortIncrementalMarkingAndColl >>> ectGarbage(v8::internal::Heap*, v8::internal::AllocationSpace, char >>> const*) + 16 at heap.cc:780 >>> frame #6: 0x0000000100089b71 v8_shell`v8::internal::Heap:: >>> ReserveSpace(this=0x0000000101803210, sizes=0x00007fff5fbff6a0, >>> locations_out=0x00007fff5fbff660) + 49 at heap.cc:809 >>> frame #7: 0x000000010020a939 v8_shell`v8::internal:: >>> Deserializer::Deserialize(this=0x00007fff5fbff648, >>> isolate=0x0000000101803200) + 41 at serialize.cc:815 >>> frame #8: 0x000000010011ca4a v8_shell`v8::internal:: >>> Isolate::Init(this=0x0000000101803200, des=0x00007fff5fbff648) + 2522 >>> at isolate.cc:2260 >>> frame #9: 0x000000010023125c >>> v8_shell`v8::internal::V8::Initialize(des=<unavailable>) >>> + 124 at v8.cc:78 >>> frame #10: 0x000000010020d3b0 v8_shell`v8::internal:: >>> Snapshot::Initialize(snapshot_file=<unavailable>) + 880 at >>> snapshot-common.cc:152 >>> frame #11: 0x0000000100009368 v8_shell`v8::V8::Initialize(char >>> const*) [inlined] v8::InitializeHelper(snapshot_file=0x0000000100396e30) >>> + 18 at api.cc:315 >>> frame #12: 0x0000000100009356 v8_shell`v8::V8::Initialize( >>> snapshot_file=0x0000000100396e30) + 38 at api.cc:5179 >>> frame #13: 0x0000000100001093 v8_shell`main(argc=1, >>> argv=0x00007fff5fbff810) + 67 at shell.cc:75 >>> frame #14: 0x0000000100001044 >>> v8_shell`___lldb_unnamed_function1$$v8_shell >>> + 52 >>> >>> >>> As I searched in the mailing list, there seems to be a object space >>> limitation on the snapshot feature, is this true? And is there a way to get >>> round of the size limitation (like changing some predefined constant >>> variable)? >>> >>> I also notice that ScriptData can be used to precompile script, is the >>> ScriptData serializable so I could write it in a file and the load it in >>> clients' machines? And is there any benchmark on how much time ScriptData >>> could save? >>> >>> My patch for V8 can be found >>> here,<https://gist.github.com/zcbenz/8837916>there is nothing special in it >>> and it just made V8 to accept external >>> snapshot file. >>> >>> Thanks, >>> Cheng >>> >> -- >> -- >> v8-users mailing list >> [email protected] <javascript:> >> http://groups.google.com/group/v8-users >> --- >> You received this message because you are subscribed to the Google Groups >> "v8-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. 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