大约有 35,410 项符合查询结果（耗时：0.0338秒） [XML]
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...见bpftrace完整参考。
该教程贡献者是Brendan Gregg, Netflix (2018), 基于他的DTrace教程系列 DTrace Tutorial。
1. 列出所有探针
bpftrace -l 'tracepoint:syscalls:sys_enter_*'
"bpftrace -l" 列出所有探测点，并且可以添加搜索项。
探针是用于捕...
Rails I18n validation deprecation warning
I just updated to rails 4.0.2 and I'm getting this warning:
5 Answers
5
...
Is there an equivalent of 'which' on the Windows command line?
...
Windows Server 2003 and later (i.e. anything after Windows XP 32 bit) provide the where.exe program which does some of what which does, though it matches all types of files, not just executable commands. (It does not match built-in shell co...
Why do Lua arrays(tables) start at 1 instead of 0?
...
Although I too found them weird at the beginning, I have learned to love 0-based arrays. But I get by OK with Lua's 1-based arrays, especially by
using Lua's generic for loop and the ipairs operator—I can usually avoid worrying about just how arrays are indexed.
...
Intelligent point label placement in R
...ld also note that I think we could all come up with scatterplots with <10-15 points that will be nearly impossible to cleanly label, even by hand, and these will likely break any automatic solution someone comes up with.
Finally, I want to reiterate that I know this isn't the answer you're looki...
How can I easily view the contents of a datatable or dataview in the immediate window
...Set, expand the quick watch, view the Tables, expand that, then view Table[0] (for example). You will see something like {Table1} in the quick watch, but notice that there is also a magnifying glass icon. Click on that icon and your DataTable will open up in a grid view.
...
Generate random number between two numbers in JavaScript
...|
edited Jun 12 '19 at 12:06
Luca Fagioli
9,56333 gold badges4343 silver badges4040 bronze badges
answer...
How to find the kth smallest element in the union of two sorted arrays?
...
50
You've got it, just keep going! And be careful with the indexes...
To simplify a bit I'll assum...
Java synchronized static methods: lock on object or class
... |
edited Nov 1 '16 at 8:02
Ravindra babu
39.4k77 gold badges201201 silver badges180180 bronze badges
a...
How to determine CPU and memory consumption from inside a process?
... now;
lastUserCPU = user;
lastSysCPU = sys;
return percent * 100;
}
Linux
On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage() etc. I spent some time trying to get this to work, but never got meaningful values. When I finally checked the kern...