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内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...an会告诉我们对象锁在的页面号范围。 假设这个范围是[p,q]， 先查找页面p-1和q+1所在的span，如果这些临近的span也是free的，则合并到[p,q]所在的span， 然后把这个span回收到PageHeap中。
CentralCache的central free lists类似ThreadCache的FreeLis...
How to copy yanked text to VI command prompt
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<C-R>" Will paste default buffer. Alternately, you can use q: to open a buffer for the next command. try :help q:
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What is in your Mathematica tool bag? [closed]
We all know that Mathematica is great, but it also often lacks critical functionality. What kind of external packages / tools / resources do you use with Mathematica?
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How do I run a batch file from my Java Application?
In my Java application, I want to run a batch file that calls " scons -Q implicit-deps-changed build\file_load_type export\file_load_type "
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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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Normal arguments vs. keyword arguments
How are "keyword arguments" different from regular arguments? Can't all arguments be passed as name=value instead of using positional syntax?
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Java 8 Distinct by property
...ey(Person::getName))
Note that if the stream is ordered and is run in parallel, this will preserve an arbitrary element from among the duplicates, instead of the first one, as distinct() does.
(This is essentially the same as my answer to this question: Java Lambda Stream Distinct() on arbitrary ...
Injecting a mock into an AngularJS service
...e.
If you have the following service with a dependency that has a method called getSomething:
angular.module('myModule', [])
.factory('myService', function (myDependency) {
return {
useDependency: function () {
return myDependency.getSomething();
}...
How to clear Facebook Sharer cache?
...the URL of the page you want to share, and click "debug". It will automatically extract all the info on your meta tags and also clear the cache.
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How are parameters sent in an HTTP POST request?
...nt in the request body, in the format that the content type specifies.
Usually the content type is application/x-www-form-urlencoded, so the request body uses the same format as the query string:
parameter=value&also=another
When you use a file upload in the form, you use the multipart/form-...