embedded-v8

问题 I have already figure out how to staticly link v8 with my own GLIBC/STDC++. $(GCC_ROOT)/bin/g++ samples/bench.cpp -o bench -isystem$(GLIBC_ROOT)/include/ -I. -Iinclude -isystem$(GLIBC) -nodefaultlibs -DV8_COMPRESS_POINTERS -static $(V8_OBJ)/libv8_monolith.a -Wl,--start-group $(GCC_ROOT)/lib64/libstdc++.a $(GLIBC_ROOT)/lib/libpthread.a $(GLIBC_ROOT)/lib/libdl.a $(GLIBC_ROOT)/lib/libm.a $(GLIBC_ROOT)/lib/librt.a $(GCC_GCC)/libgcc.a $(GCC_GCC)/libgcc_eh.a $(GCC_GCC)/libcommon.a $(GLIBC_ROOT)/lib

问题 I have already figure out how to staticly link v8 with my own GLIBC/STDC++. $(GCC_ROOT)/bin/g++ samples/bench.cpp -o bench -isystem$(GLIBC_ROOT)/include/ -I. -Iinclude -isystem$(GLIBC) -nodefaultlibs -DV8_COMPRESS_POINTERS -static $(V8_OBJ)/libv8_monolith.a -Wl,--start-group $(GCC_ROOT)/lib64/libstdc++.a $(GLIBC_ROOT)/lib/libpthread.a $(GLIBC_ROOT)/lib/libdl.a $(GLIBC_ROOT)/lib/libm.a $(GLIBC_ROOT)/lib/librt.a $(GCC_GCC)/libgcc.a $(GCC_GCC)/libgcc_eh.a $(GCC_GCC)/libcommon.a $(GLIBC_ROOT)/lib

问题 I can't seem to figure out something getting V8 started up. I have this code: if (!_V8Initialized) { v8::V8::InitializeICU(); v8::V8::InitializeExternalStartupData("x86\\"); // (this loads ok, I checked) auto platform = v8::platform::CreateDefaultPlatform(); v8::V8::InitializePlatform(platform); v8::V8::Initialize(); _V8Initialized = true; } auto params = Isolate::CreateParams(); params.array_buffer_allocator = ArrayBuffer::Allocator::NewDefaultAllocator(); _Isolate = Isolate::New(params);

问题 I can't seem to figure out something getting V8 started up. I have this code: if (!_V8Initialized) { v8::V8::InitializeICU(); v8::V8::InitializeExternalStartupData("x86\\"); // (this loads ok, I checked) auto platform = v8::platform::CreateDefaultPlatform(); v8::V8::InitializePlatform(platform); v8::V8::Initialize(); _V8Initialized = true; } auto params = Isolate::CreateParams(); params.array_buffer_allocator = ArrayBuffer::Allocator::NewDefaultAllocator(); _Isolate = Isolate::New(params);

问题 I am new to V8 and trying to create some bindings between my C++ and JS code. The issue is that I am not able to access a global Javascript variable across different Javascript functions. The reason is because each Javascript function is called my different C++ function. I guess the problem with my code is that I am creating a new local context within each C++ function. My JS Code : var test = []; function f1() { var obj = {}; obj.name = "Testing"; test.push(obj); } function f2() { var value

问题 I am new to V8 and trying to create some bindings between my C++ and JS code. The issue is that I am not able to access a global Javascript variable across different Javascript functions. The reason is because each Javascript function is called my different C++ function. I guess the problem with my code is that I am creating a new local context within each C++ function. My JS Code : var test = []; function f1() { var obj = {}; obj.name = "Testing"; test.push(obj); } function f2() { var value

问题 I have a small question related to V8 6.7.240 GC behavior and AddGCPrologueCallback / AddGCEpilogueCallback callbacks. A little story behind the problem: we launch custom JS code using V8 engine, and in order to limit execution by time we have a watchdog (separate thread with isolate->TerminateExecution() call) that monitors code and kills it in case of long running, but with respect to GC activity. So, if code execution timeout equals to 200ms , GC activity takes 300ms and code takes 199ms

问题 I have a small question related to V8 6.7.240 GC behavior and AddGCPrologueCallback / AddGCEpilogueCallback callbacks. A little story behind the problem: we launch custom JS code using V8 engine, and in order to limit execution by time we have a watchdog (separate thread with isolate->TerminateExecution() call) that monitors code and kills it in case of long running, but with respect to GC activity. So, if code execution timeout equals to 200ms , GC activity takes 300ms and code takes 199ms

问题 V8 developer is needed. I've noticed that the following code leaks mapped memory (mmap, munmap), concretely the amount of mapped regions within cat /proc/<pid>/maps continuously grows and hits the system limit pretty quickly ( /proc/sys/vm/max_map_count ). void f() { auto platform = v8::platform::CreateDefaultPlatform(); v8::Isolate::CreateParams create_params; create_params.array_buffer_allocator = v8::ArrayBuffer::Allocator::NewDefaultAllocator(); v8::V8::InitializePlatform(platform); v8:

问题 So, I have a TCP server in eventmachine and therubyracer is used as a way to pre-pend operations (like filters or extensions) to the server. It all works charming when the server is not receiving a lot of data, but when it's being flooded (it is required sometimes) it becomes really slow. So, I did a small benchmark to see how slower the rubyracer is compared to Ruby, and I was shocked when I saw the results: user system total real V8: 0.060000 0.000000 0.060000 ( 0.059903) Ruby: 0.000000 0