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Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
bpftrace安装请参考：bpftrace-install 。
1、查看哪些程序（如head,tail）正在打开什么文件：
# bpftrace -e 'tracepoint:sysca...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网移动版 - ...
...看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
bpftrace安装请参考：bpftrace-install 。
1、查看哪些程序（如head,tail）正在打开什么文件：
# bpftrace -e 'tracepoint:sysca...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
bpftrace安装请参考：bpftrace-install 。
1、查看哪些程序（如head,tail）正在打开什么文件：
# bpftrace -e 'tracepoint:sysca...
Mysql: Select rows from a table that are not in another
How to select all rows in one table that do not appear on another?
8 Answers
8
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Tools for JPEG optimization? [closed]
Do you know of any tools (preferrably command-line) to automatically and losslessly optimize JPEGs that I could integrate into our build environment? For PNGs I'm currently using PNGOUT , and it generally saves around 40% bandwidth/image size.
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Automatic Retina images for web sites
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There is a new attribute for the img tag that allows you to add a retina src attribute, namely srcset. No javascript or CSS needed, no double loading of images.
<img src="low-res.jpg" srcset="high-res.jpg 2x">
Browser Support: http://caniuse.com/#search=srcset
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How to connect android emulator to the internet
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Check your firewall settings - as @moon_walker333 mentions in this thread. AVG was blocking my application.
– ccbunney
Apr 20 '13 at 8:06
1
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How to temporarily exit Vim and go back
... Can use $ ps to find whether we're in a vim sub-shell before calling $ exit to avoid closing the terminal accidentally. Found this here (I haven't tried the prompt indicator mentioned on the website).
– Daniel
May 2 '19 at 10:07
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PHP Array to CSV
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Thanks for edit Vyktor, my typing is awful today! I'm usually so careful.
– Martin Lyne
Oct 28 '12 at 11:08
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MySQL OPTIMIZE all tables?
...ZE TABLE command which can be used to reclaim unused space in a MySQL install. Is there a way (built-in command or common stored procedure) to run this optimization for every table in the database and/or server install, or is this something you'd have to script up yourself?
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