Search Results

But should you investigate this performance issue? That depends on the value of fixing this problem. …

Consider drift, as Mason Wheeler mentioned. Do not increment each counter, rather update the clock state directly. Do not assume that every minute has 60 seconds. Some have 59, others 61. If you do …

One example involves a closure, the other does not. Implementing closures is kinda tricky, since closed over variables do not work like normal variables. This is more obvious in a low-level language l …

It is more difficult to write than high-level languages, and doesn't reward this difficulty with noticeably better performance. … As with any performance work, don't “optimize” blindly: Determine actual performance requirements. Measure the performance. Profile the software for bottlenecks. …

In performance-critical code, inlining helper functions can have a noticeable effect. … Even in performance-critical software, the majority of the code won't be a “hot spot”. …

So it is a wonderful pattern that will not be displaced by other algorithms, but its performance is not competitive with state-of-the-art GC. …

Put an index on your database. Databases are good at searching and filtering, if they have appropriate indices. Then write queries that use these indices. Log and analyse slow queries to find out why …

When the total number of packets is bounded, using a simple array similar to your suggestion is sufficient. You don't have to scan the array after each received packet to see whether you can flush par …

It depends. If the machine is dedicated to this computation, you should use all cores – unused computing resources don't speed things up. If you are using a realtime scheduler, a non-preemptive sch …

Some code is inherently complicated. We can shuffle the code around to emphasize one aspect or another, but we can't really simplify it. Your code looks like an example of code that cannot be inherent …

Unless you really need that performance, always prefer better readability. … If you do need that performance, and can prove with a profiler & benchmarking tools that this change will give you that performance, then of course go for it. …

free(p); } If adding your own caching layer on top of the allocator, note that higher-level caches tend to defeat the performance of lower-level caches. …

In general: minimize variance where possible collect lots of data throw away bad data apply some statistics Minimizing variance You have already identified some possible error sources, e.g. conte …

If you are willing to translate your Python code to Cython or RPython, then you'll get C-like performance. … This indirection weighs down performance. …

place – often, there isn't a clear performance boundary between compiled and interpreted solutions. … When choosing a tech, performance of a language runtime in itself is completely irrelevant. …