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SQL Server: Filter output of sp_who2
...R(MAX),
DBName VARCHAR(MAX),
Command VARCHAR(MAX),
CPUTime INT,
DiskIO INT,
LastBatch VARCHAR(MAX),
ProgramName VARCHAR(MAX),
SPID_1 INT,
REQUESTID INT
)
INSERT INTO @Table EXEC sp_who2
SELECT *
FROM @Table
WHERE ....
And filter...
互联网数据造假盛行 浮夸风伤害创新经济 - 资讯 - 清泛网 - 专注C/C++及内核技术
...今年3月同样公开指出，IT产业与互联网产业存在很大诚信问题，出现严重的数据造假，甚至出现“税前营业额”这种奇怪的名词。
数据造假乱象
本应艰辛励志的创业故事开始变得浮躁起来，数据造假和各种谎言在互联网行业...
Heap vs Binary Search Tree (BST)
...ata
tested on Ubuntu 19.04, GCC 8.3.0 in a Lenovo ThinkPad P51 laptop with CPU: Intel Core i7-7820HQ CPU (4 cores / 8 threads, 2.90 GHz base, 8 MB cache), RAM: 2x Samsung M471A2K43BB1-CRC (2x 16GiB, 2400 Mbps), SSD: Samsung MZVLB512HAJQ-000L7 (512GB, 3,000 MB/s)
So clearly:
heap insert time is b...
Convert dmesg timestamp to custom date format
...el timestamps in dmesg are derived from an uptime value kept by individual CPUs. Over time this gets out of sync with the real time clock. As a result, the most accurate conversion for recent dmesg entries will be based on the CPU clock rather than /proc/uptime. For example, on a particular CentOS 6...
Why is 1/1/1970 the “epoch time”?
... as business spreadsheets, scientific data presentation, time machine UIs, etc.
– Lenoxus
Mar 3 '14 at 15:51
...
SQL Server IN vs. EXISTS Performance
...ntil you see how the optimizer factors in all the other aspects of indexes etc., you really will never know.
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MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...辑的处理。
Application Model MVC虽然看似解决了复杂逻辑的问题，但它仍然存在硬伤：
首先随着以微软视窗为主的图形化操作系统的兴起，操作系统本身提供了一套原生的View接口，用来截获用户通过鼠标或键盘发出的请求，结果...
Thread vs ThreadPool
...than the main thread pool. If one has a lot of tasks to perform which are CPU intensive but won't block, it may be helpful to dispatch them using a pool of application threads (one per CPU core) which is separate from the "main" threadpool, since using more threads than cores will be counterprod
JavaScript, Node.js: is Array.forEach asynchronous?
...
technically, forEach isn't "blocking", as the CPU never goes to sleep. It's synchronous and CPU-bound, which can feel like "blocking" when you expect the node app to be responsive to events.
– Dave Dopson
Aug 2 '11 at 17:58
...
Convert objective-c typedef to its string equivalent
...Type.JSON sytax. FormatType is a type and the enum values (e.g. JSON, XML, etc.) are values that you can assign to that type.
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