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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...同时读写可能会有IO异常,导致drbd设备失效
为了解决这个问题则使用 gfs + cman 实现分布式文件锁方案
3.3安装cman
yum –y cman
3.4 gfs集群文件系统
在 /usr/local/drbd-utils-8.9.4/etc/drbd.conf
在配置文件的 net 选项中
all...
Uint8Array to string in Javascript
...add one character at the time as the string concaternation would become to CPU intensive.
13 Answers
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A quick and easy way to join array elements with a separator (the opposite of split) in Java [duplic
...sidering fast, you can rely on that i > 0 being optimized out thanks to CPU lookahead. Consider stackoverflow.com/q/11227809/330057
– corsiKa
Feb 27 '15 at 21:04
3
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Best way to stress test a website [duplicate]
...y, Selenium can be used as a load testing tool - it just requires a lot of CPU cores and RAM. Fortunately, the cloud makes that pretty cheap these days. I'm the creator of Selenium RC and also the founder of BrowserMob, which provides Selenium-based load testing. See browsermob.com for more info.
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Set padding for UITextField with UITextBorderStyleNone
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Using ARC, why does my app hang and use a lot of CPU if I reuse *paddingView with multiple text fields?
– The Muffin Man
Nov 27 '13 at 17:03
3
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How do I determine if my python shell is executing in 32bit or 64bit?
...on, that's true but that's not what the question asked for. And, on those CPUs where it is possible to run, say, either 32-bit or 64-bit binaries, the arch of the machine is usually not all that relevant to a Python program; what matters is what arch the Python interpreter itself is running as.
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List the queries running on SQL Server
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SELECT
p.spid, p.status, p.hostname, p.loginame, p.cpu, r.start_time, r.command,
p.program_name, text
FROM
sys.dm_exec_requests AS r,
master.dbo.sysprocesses AS p
CROSS APPLY sys.dm_exec_sql_text(p.sql_handle)
WHERE
p.status NOT IN ('sleeping', 'backgrou...
Unix shell script find out which directory the script file resides?
... the savings of not creating a local Bash variable in your script, both in CPU cycles and readability.
–
Override back button to act like home button
... like stop animations and other things that consume a noticeable amount of CPU in order to make the switch to the next activity as fast as possible, or to close resources that are exclusive access such as the camera.
share
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Java Timer vs ExecutorService?
...os of ExecutorService over Timer
Timer can't take advantage of available CPU cores unlike ExecutorService especially with multiple tasks using flavours of ExecutorService like ForkJoinPool
ExecutorService provides collaborative API if you need coordination between multiple tasks. Assume that you ...