大约有 43,000 项符合查询结果(耗时:0.0676秒) [XML]

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how to listen to N channels? (dynamic select statement)

...more idiomatic, straight-forward, and readable. Performance. On my Xeon amd64 system the goroutines+channels out performs the reflect solution by about two orders of magnitude (in general reflection in Go is often slower and should only be used when absolutely required). Of course, if there is any s...
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How do I find where an exception was thrown in C++?

...uc_mcontext.eip is probably very platform dependent (e.g., use ...rip on a 64-bit platform). 3) Compile with -rdynamic so you get backtrace symbols. 4) Run ./a.out 2>&1 | c++filt to get pretty backtrace symbols. – Dan Mar 15 '10 at 19:05 ...
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How to highlight text using javascript

... Stefan SteigerStefan Steiger 64k6060 gold badges316316 silver badges397397 bronze badges ...
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Redis strings vs Redis hashes to represent JSON: efficiency?

...ct code redis = Redis.include(MeRedis).configure( hash_max_ziplist_value: 64, hash_max_ziplist_entries: 512 ).new => #<Redis client v4.0.1 for redis://127.0.0.1:6379/0> > redis.flushdb => "OK" > ap redis.info(:memory) { "used_memory" => "529512", ...
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What characters are allowed in an email address?

... The format of e-mail address is: local-part@domain-part (max. 64@255 characters, no more 256 in total). The local-part and domain-part could have different set of permitted characters, but that's not all, as there are more rules to it. In general, the local part can have these ASCII c...
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Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?

... 64 Besides the tests mentioned in the question, I recently created some new ones involving much fe...
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What does enctype='multipart/form-data' mean?

... Its worth pointing out you can base64 encode your image and send it as plain string data . – James Jul 14 '14 at 22:46 4 ...
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How can building a heap be O(n) time complexity?

... gsamaras 64.5k3131 gold badges140140 silver badges240240 bronze badges answered Mar 18 '12 at 3:39 emre nevaye...
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Performance optimization strategies of last resort [closed]

...eal Even on modern x86 hardware, imul can stall the pipeline; see "Intel® 64 and IA-32 Architectures Optimization Reference Manual" §13.3.2.3: "Integer multiply instruction takes several cycles to execute. They are pipelined such that an integer multiply instruction and another long-latency instru...
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Is .NET/Mono or Java the better choice for cross-platform development? [closed]

...mplements parts of the CLR spec that even Microsoft does not support (like 64 bit arrays). One of the most exciting new pieces of technology in the .NET world is Rosylyn. Mono has offered the C# compiler as a service for many years. Some of what Rosylyn offers is available via NRefractory as well. A...