大约有 3,000 项符合查询结果(耗时:0.0241秒) [XML]

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Scalar vs. primitive data type - are they the same thing?

...++ objects http://www.open-std.org/jtc1/sc22/wg21/docs/papers/1995/N0774.pdf I'm curious about whether this refers to whether these items would have a value of 'scale'? - Such as counting numbers. share | ...
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Django ModelForm: What is save(commit=False) used for?

...easheet" if attachment.filename.lower().endswith(('.doc','.pdf','.rtf','.txt')): attachment.file_type = "text" attachment.save() here is my example of using save(commit=False). I wanted to check what type of file a user uploaded before saving it ...
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Mapping two integers to one, in a unique and deterministic way

... -> N mapping. These are used for e.g. dovetailing. Have a look at this PDF for an introduction to so-called pairing functions. Wikipedia introduces a specific pairing function, namely the Cantor pairing function: Three remarks: As others have made clear, if you plan to implement a pairing f...
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What is tail call optimization?

...nd space efficiency": cesura17.net/~will/Professional/Research/Papers/tail.pdf – J D Aug 12 '13 at 20:47 3 ...
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How to create a multi-tenant database with shared table structures?

...perforce.com/media/ForcedotcomBookLibrary/Force.com_Multitenancy_WP_101508.pdf They have 1 huge table w/ 500 string columns (Value0, Value1, ... Value500). Dates and Numbers are stored as strings in a format such that they can be converted to their native types at the database level. There are me...
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驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...动进行更大程度的控制。 为什么是 OOM Killer? 主要发行内核设置/proc/sys/vm/overcommit_memory的默认值 为零,这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的,即分配的内存不会立即使用,并...
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驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...动进行更大程度的控制。 为什么是 OOM Killer? 主要发行内核设置/proc/sys/vm/overcommit_memory的默认值 为零,这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的,即分配的内存不会立即使用,并...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...动进行更大程度的控制。 为什么是 OOM Killer? 主要发行内核设置/proc/sys/vm/overcommit_memory的默认值 为零,这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的,即分配的内存不会立即使用,并...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...动进行更大程度的控制。 为什么是 OOM Killer? 主要发行内核设置/proc/sys/vm/overcommit_memory的默认值 为零,这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的,即分配的内存不会立即使用,并...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...动进行更大程度的控制。 为什么是 OOM Killer? 主要发行内核设置/proc/sys/vm/overcommit_memory的默认值 为零,这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的,即分配的内存不会立即使用,并...