v8

V8 garbage collector callbacks for measuring GC activity

由 为君一笑 提交于 2020-03-24 03:08:50
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

V8 garbage collector callbacks for measuring GC activity

由 百般思念 提交于 2020-03-24 03:07:46
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

在WIN10上不用CMake和MinGW编译Android版本的OpenCV

由 青春壹個敷衍的年華 提交于 2020-03-23 23:26:29
3 月，跳不动了？>>> 构建编译项目 不需要安装CMake，MinGW等额外工具。只需要Android NDK和OpenCV源码 。 在WIN10上使用cmd窗口命令编译OpenCV步骤，操作版本为4.0.1： 在OpenCV根目录下面新建一个文件夹，比如叫做build_cmd。因为OpenCV要求 CMAKE_BINARY_DIR 不和 CMAKE_SOURCE_DIR 是同一个文件夹，所以不能在根目录下直接执行cmake cd到build_cmd 执行如下命令，路径对应修改 E:\Android\Sdk\cmake\3.10.2.4988404\bin\cmake.exe ^ -DCMAKE_TOOLCHAIN_FILE=E:\Android\Sdk\ndk-bundle\build\cmake\android.toolchain.cmake ^ -DANDROID_NDK=E:\Android\Sdk\ndk-bundle ^ -DANDROID_ABI="arm64-v8a" ^ -DANDROID_SDK=E:\Android\Sdk ^ -DWITH_TBB=ON ^ -DCPU_BASELINE=NEON ^ -DCPU_DISPATCH=NEON ^ -DOPENCV_ENABLE_NONFREE=ON ^ -DBUILD_ANDROID_EXAMPLES=OFF

升级andorid studio 3.5 后报错的问题解决方案

由 两盒软妹~` 提交于 2020-03-22 17:14:14
3 月，跳不动了？>>> 1.android studio GC overhead limit exceeded 在gradele.properties 中配置如下内容： android.useDeprecatedNdk=true org.gradle.daemon=true org.gradle.jvmargs=-Xmx4096m -XX:MaxPermSize=4096m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 org.gradle.parallel=true org.gradle.configureondemand=true 2.cannot build selected target abi x86 no suitable splits configured armeabi-v7a arm64-v8a 在build.gradle中配置如下内容： splits { abi { enable true reset() include 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a' //select ABIs to build APKs for universalApk true //generate an additional APK that contains all

How to emulate “window” object in Nodejs?

由 ￣綄美尐妖づ 提交于 2020-03-21 11:43:59
问题 When running in a browser, everything attached to the "window" object will automatically become global object. How can I create an object similar to that in Nodejs? mySpecialObject.foo = 9; var f = function() { console.log(foo); }; f(); // This should print "9" to console 回答1: You can use the predefined object global for that purpose. If you define foo as a property of the global object, it will be available in all modules used after that. For example, in app.js : var http = require('http');

在WIN10上不用CMake和MinGW编译Android版本的OpenCV

由 て烟熏妆下的殇ゞ 提交于 2020-03-21 00:42:54
3 月，跳不动了？>>> 构建编译项目 不需要安装CMake，MinGW等额外工具。只需要Android NDK和OpenCV源码 。 在WIN10上使用cmd窗口命令编译OpenCV步骤，操作版本为4.0.1： 在OpenCV根目录下面新建一个文件夹，比如叫做build_cmd。因为OpenCV要求 CMAKE_BINARY_DIR 不和 CMAKE_SOURCE_DIR 是同一个文件夹，所以不能在根目录下直接执行cmake cd到build_cmd 执行如下命令，路径对应修改 E:\Android\Sdk\cmake\3.10.2.4988404\bin\cmake.exe ^ -DCMAKE_TOOLCHAIN_FILE=E:\Android\Sdk\ndk-bundle\build\cmake\android.toolchain.cmake ^ -DANDROID_NDK=E:\Android\Sdk\ndk-bundle ^ -DANDROID_ABI="arm64-v8a" ^ -DANDROID_SDK=E:\Android\Sdk ^ -DWITH_TBB=ON ^ -DCPU_BASELINE=NEON ^ -DCPU_DISPATCH=NEON ^ -DOPENCV_ENABLE_NONFREE=ON ^ -DBUILD_ANDROID_EXAMPLES=OFF

Google Chrome for mac(谷歌浏览器) v82.0.4083.0开发版

由 我怕爱的太早我们不能终老 提交于 2020-03-17 11:54:55
某厂面试归来，发现自己落伍了！>>> 谷歌浏览器 mac版 将简约的界面设计与先进的技术相融合，让网络浏览变得更快速安全而且简便。谷歌浏览器官方版是一款可让您更快速、轻松且安全地使用网络的浏览器，它的设计超级简洁，使用起来更加方便。喜欢的朋友们千万不要错过哦！ Google Chrome软件特色 畅享全方位的快速体验 用户每次上网，一般都有一定的目的。无论这目的是大是小，是工作还是娱乐，Chrome 所具备的智能工具和非凡速度都能让您在网络世界得心应手地操作、创作和探索。 利用 Google 智能工具，高效处理各种事务 Chrome 具备让您充分利用网络所需的一切功能，例如在您的地址栏中快速显示答案、提供一键式翻译、在您的手机上为您量身推荐文章。 有 Chrome 安保措施保驾护航，网上冲浪再不必畏手畏脚 对网络上的安全隐患一无所知？没关系。Chrome 会自动为您提供安全保护，使您免遭网上诱骗网站和危险网站等安全问题的侵害。 随时随地，无所不能 Chrome 可在任何操作系统中和任何设备上运行。您可在笔记本电脑和手机之间来回切换、按照自己喜欢的方式自定义 Chrome 以及继续享用更多功能。 谷歌浏览器官方版功能介绍 快速 Chrome 浏览器追求的是全方位的快速体验。它不仅能飞快地从桌面上启动，而且能瞬间完成网页加载，还能以闪电般的速度运行网络应用。 简单 Chrome

How do I rewrite this code for V8 from Rhino?

由 ▼魔方 西西 提交于 2020-03-16 08:08:35
问题 I used to a script on GAS. Because I do manage attendance by Chat and Google spread sheet with GAS. Chat tool is Chat work. It works on Gas(Rhino). But It doesn't work V8. I tried to rewrite line19 for each (var obj in json){ to for (var obj in json){ Please tell me what is bad... Which should I rewrite it? function recordTime(){ /*Sheet setting*/ var wsData = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("data"); //DataSheetSetting var wsStaff = SpreadsheetApp.getActiveSpreadsheet()

How do I rewrite this code for V8 from Rhino?

由 倾然丶 夕夏残阳落幕 提交于 2020-03-16 08:08:10
问题 I used to a script on GAS. Because I do manage attendance by Chat and Google spread sheet with GAS. Chat tool is Chat work. It works on Gas(Rhino). But It doesn't work V8. I tried to rewrite line19 for each (var obj in json){ to for (var obj in json){ Please tell me what is bad... Which should I rewrite it? function recordTime(){ /*Sheet setting*/ var wsData = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("data"); //DataSheetSetting var wsStaff = SpreadsheetApp.getActiveSpreadsheet()

Search Pattern Error since Google Scripts V8 Update

由 半城伤御伤魂 提交于 2020-03-16 07:36:44
问题 Ever since google forced the update "This project is running on our new Apps Script runtime powered by Chrome V8." I'm getting the following error and I don't understand why. "Exception: Invalid argument: searchPattern at recreateReferral(recreateReferral:82:13)" Here is the snippet of code: Line 82 starts with newBody. for(i = 0; i <=16; i++) { newBody.replaceText(fields[0][i], newData[0][i]); } 回答1: Possible cause(s): Your original rhino script is buggy, because it doesn't check the type of
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