大约有 3,800 项符合查询结果（耗时：0.0136秒） [XML]
Should I commit or rollback a read transaction?
... done via COMMIT or ROLLBACK. There might be a insignificant difference in CPU time spent - a COMMIT is probably faster to parse than a ROLLBACK (two characters less) and other minor differences. Obviously, this is only true for read-only operations!
Totally not asked for: another programmer who mi...
Is there a combination of “LIKE” and “IN” in SQL?
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True. But regular expressions burn CPU like crazy, not I/O. If it is worse and how much worse it is, depends on how large your list of expressions is and whether the column is indexed or not, among others. It is just a warning, so that the original poster is n...
FFMPEG (libx264) “height not divisible by 2”
...d significant slowness (you can check the ffmpeg log and if it shows using cpu capabilties: none! then that's bad). I'm not sure why they added that, but I'm not an Android developer.
– llogan
Nov 30 '17 at 21:37
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How do I get time of a Python program's execution?
... User time (seconds): 0.08
System time (seconds): 0.02
Percent of CPU this job got: 98%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.10
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kby...
Garbage collector in Android
...t you wrote if you allow "performance" to mean something more general than CPU efficiency. On an Android device, the user's perception of performance is paramount. The developer may be prefer to run the GC while the user is pressing buttons for example, so the user will not be aware of the GC.
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What's the “average” requests per second for a production web application?
... ranges on various amazon hardware we use(best value was the 32 bit medium cpu when it came down to $$ / event / second) and our requests / seconds ranged from 29 requests / second / node up to 150 requests/second/node.
Giving better hardware of course gives better results but not the best ROI. Any...
Tests not running in Test Explorer
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If your projects aren't all AnyCpu then you may also want to check that the following 2 settings match:
[Right click test project] -> properties -> Build -> Platform target - e.g. x64
[Main Menu] -> Test -> Test Settings -> Default Proc...
warning this call is not awaited, execution of the current method continues
...' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. This also causes a new thread to be created, whereas a new thread will not necessarily be created with async/await alone.
– gregsdennis
Feb 26 '15...
An efficient compression algorithm for short text strings [closed]
...a brilliant compression ratio, but it is incredibly frugal with memory and CPU resources and can also work on a continuous stream of data - the decompressor maintains its own copy of the lookup table as it decompresses, thus the lookup table adjusts to the type of data being compressed.
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JSON formatter in C#?
...0.3. Formatted a 6MB JSON file in under 5 seconds on a Win10 Intel i7-7700 CPU (4.20Ghz).
– batpox
Jul 28 '17 at 0:17
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