profiler

问题 I would like to measure the time elapsed to evaluate a block of code in a Python program, possibly separating between user cpu time, system cpu time and elapsed time. I know the timeit module, but I have many self-written functions and it is not very easy to pass them in the setup process. I would rather have something that could be used like: #up to here I have done something.... start_counting() #or whatever command used to mark that I want to measure #the time elapsed in the next rows #

问题 i wonder if there is something similar to Sql Profiler for Sql Server Compact Edition? i use SqlCE as backend for a desktop application and it would be really great to have something like sql profiler for this embedded database. or at least something simliar to the NHibernate show_sql feature... any ideas? thanks j. 回答1: The only tested solution I know of that could solve this problem is Altiris Profiler which is a tool I designed at my previous job, but is closed source and not-for-sale. The

问题 I wrote a persistent network service in Perl that runs on Linux. Unfortunately, as it runs, its Resident Stack Size (RSS) just grows, and grows, and grows, slowly but surely. This is despite diligent efforts on my part to expunge all unneeded hash keys and delete all references to objects that would otherwise cause reference counts to remain in place and obstruct garbage collection. Are there any good tools for profiling the memory usage associated with various native data primitives, blessed

问题 Today I was just profiling my WCF application using the profiler of visual studio in Instrumentation mode. Later I needed to a publish to my web server and suddenly I was getting an error saying that Microsoft.VisualStudio.Enterprise.AspNetHelper file path can't be found. when I reviewed my web.config, I have seen that following lines were added by profiling session. <system.web> <compilation targetFramework="4.0" debug="true" assemblyPostProcessorType="Microsoft.VisualStudio.Enterprise

问题 When running the VisualVM profiler, it gives this error in the console of the program being run: objc[1145]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home/bin/java and /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home/jre/lib/libinstrument.dylib. One of the two will be used. Which one is undefined. Profiler Agent: Waiting for connection on port 5140 (Protocol version: 15) Profiler Agent: Established connection with

问题 I did a generalization a an algorithm implementation. Now, the new implementation runs more than 100 times slower than the old one. My guess is that the source unnecessary use of inefficiency is implicit copy constructors that I somehow introduced. I tried to profile the code, but I get a lot of data that I do not understand. Do I really need to know STL internals to be able to profile STL based code? Snippet of the flat profile: Flat profile: Each sample counts as 0.01 seconds. % cumulative

问题 I just started using PHP profiler to find files in php script which caused slow mysql queries. Some suggested that I use xdebug to track it with the timestamp from the slow log-file entry compared to the files in php profiler that was executed at the same timestamp. I have read the xdebug documentation but can't find an explanation of this problem. Can anyone give me enlightenment? I'm using php 7.0, Debian 9. My slow-query-log-file entries: # Thread_id: 222244 Schema: user QC_hit: No # Query

问题 I'm profiling my CUDA application, and I've come across something that I don't understand about the "Control Flow Divergence" metric that is present in the Visual Profiler. According to the User Guide: Control flow divergence gives the percentage of thread instructions that were not executed by all threads in the warp, hence causing divergence. I've got the following code in my CUDA kernel: int var; var = tex2D(texture, x, y); // texture fetch if(var < 0) { var *= -1; results[(blockIdx.x

问题 Nashorn java script engine has built-in profiler which can be invoked like this: jjs -pcs profiled_script.js . This profiler produces a file named NashornProfile.txt . Here is an example line from this file: 0 dyn:getProp|getElem|getMethod:Object 764015 1 What is the format of this file and what is the meaning of each column? 回答1: The format is: Sequential line index Function name Total time spend inside function Hit count for the function This values are tab separated. Information taken from

问题 I'm trying to run the visual studio 2017 profiler for IIS Express on Windows 10 But I'm running into some trouble. When I tried to install all the required IIS Component's I Noticed that I was missing a few because I was running Windows 10 Home Edition I found a solution Here dism /online /norestart /add-package:%SystemRoot%\servicing\Packages\Microsoft-Windows-IIS-WebServer-AddOn-2-Package~31bf3856ad364e35~amd64~~10.0.16299.15.mum After I ran that I was pretty much able to install all the