大约有 40,000 项符合查询结果（耗时：0.0287秒） [XML]
When should one use a spinlock instead of mutex?
...nd it does not succeed, because the mutex is already locked, it will go to sleep, immediately allowing another thread to run. It will continue to sleep until being woken up, which will be the case once the mutex is being unlocked by whatever thread was holding the lock before. When a thread tries to...
What is the difference between static func and class func in Swift?
...tatic func eat() -> String {
return "Miam miam"
}
func sleep() -> String {
return "Zzz"
}
}
class Bulldog: Dog {
// Can not override a final function
// override final func identity() -> String {
// return "I'm once a dog but now I'm a cat"
// ...
Run certain code every n seconds [duplicate]
...o through whatever code I had, then once it had been 5 seconds (with time.sleep() ) it would execute that code. I would be using this to update a file though, not print Hello World.
...
Cron jobs and random times, within given hours
...maxdelay)) # pick an independent random delay for each of the 20 runs
(sleep $((delay*60)); /path/to/phpscript.php) & # background a subshell to wait, then run the php script
done
A few notes: this approach it a little wasteful of resources, as it fires off 20 background processes at 9am, ...
DbArithmeticExpression arguments must have a numeric common type
...Functions*. So, for the first part of your statement, something like:
var sleeps = context.Sleeps(o =>
DbFunctions.DiffHours(o.ClientDateTimeStamp, clientDateTime) < 24);
Note that the DiffHours method accepts Nullable<DateTime>.
Entity Framwork core (when used with Sql Server, m...
Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...r/bin/df
1.002 who 12105 6578 0 /usr/bin/who
1.004 sleep 12106 6578 0 /usr/bin/sleep 1
2.006 head 12107 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
2.008 head 12108 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /p...
Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...r/bin/df
1.002 who 12105 6578 0 /usr/bin/who
1.004 sleep 12106 6578 0 /usr/bin/sleep 1
2.006 head 12107 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
2.008 head 12108 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /p...
Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网移动版 - ...
...r/bin/df
1.002 who 12105 6578 0 /usr/bin/who
1.004 sleep 12106 6578 0 /usr/bin/sleep 1
2.006 head 12107 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
2.008 head 12108 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /p...
Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...r/bin/df
1.002 who 12105 6578 0 /usr/bin/who
1.004 sleep 12106 6578 0 /usr/bin/sleep 1
2.006 head 12107 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
2.008 head 12108 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /p...
Linux bcc tools使用总结（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...r/bin/df
1.002 who 12105 6578 0 /usr/bin/who
1.004 sleep 12106 6578 0 /usr/bin/sleep 1
2.006 head 12107 6578 0 /usr/bin/head -v -n 8 /proc/meminfo
2.008 head 12108 6578 0 /usr/bin/head -v -n 2 /proc/stat /proc/version /p...