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Questions tagged [profiling]

Profiling is the process of measuring an application or system by running an analysis tool called a profiler. Profiling tools can focus on many aspects: functions call times and count, memory usage, cpu load, and resource usage.

Profiling is the process of measuring an application or system by running an analysis tool called a profiler. Profiling tools can focus on many aspects: functions call times and count, memory usage, cpu load, and resource usage.

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How to setup Django silk profiler

I am completely new to Django and profiling. I have completed all the steps mentioned in the document for setting up the silk profiler. https://github.com/jazzband/silk I did not find any error when I ran the manage.py run server command But when I…
Aparna Rajan
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how to find which part of js is slowing the page down

hi my page is taking about 9s on local server and about 20s on remote server, i am sure that the problem is in js, but i can't find what makes it slow, can you please help me find a solution or any tool to hunt the problem down?
Shaheer
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Deeper function profiling/emulation

Hello everyone Merry Christmas I need an advice I have the following code: int main() { int k=5000000; int p; int sum=0; for (p=0;p
Syntax_Error
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How to detect if RDTSC returns a constant rate counter value?

It seems most newer CPUs from both AMD and Intel implement rdtsc as a constant rate counter, avoiding the issues caused by frequency changing as a result of things like TurboBoost or power saving settings. As rdtsc is a lot more suitable for…
Suma
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How to visualize NodeJS .cpuprofile

I use v8-profiler to profile my NodeJS app. It generates a .cpuprofile file. I used to be able to visualize the content of the file with Google Chrome built-in DevTools. However, Chrome recently changed the file format for profiling results and…
RainingChain
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GHC profiler output

I have been going through a blog discussing space leaks in Haskell and have been trying to understand the graph output provided by the ghc profiler (after using hp2ps) Specifically this is the code that I am looking at: main = print (f [1..4000000]…
Suresh Sudhakaran
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JVisualVM -Xverify:none does not solve Redefinition failed with error 62

I am trying to profile a simple java application using jvisualvm on Windows 7 64 bit. I am using Java 8 with JDK 1.8.0_131. I am able to see my application and use the Sample tab of VisualVM, however when I use the CPU option of the Profile tab I…
user1433734
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Are there any Qt specific profilers around?

are there any profilers which work well with Qt? I'd prefer free profilers for windows but any hint is appreciated. I tried "Very Sleepy" and it works but I cant convince it to demangle the method names. Maybe I'm just doing wrong? Any pit-falls I'm…
atamanroman
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How to see call tree profiling in JMH?

I want to profile JMH tests and look at a call tree like in the VisualVM. But when I use the StackProfiler, it gives me native methods like that, which totally useless in my case. ....[Thread state…
Александр Меньшиков
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Visual Studio Profile Guided Optimization

I have a native C++ application which performs heavy calculations and consumes a lot of memory. My goal is to optimize it, mainly reduce its run time. After several cycles of profiling-optimizing, I tried the Profile Guided Optimization which I…
Amir Gonnen
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Linux perf tools - How to simultaniously profiling multiple processes? How to extract Percentage of CPU cycles?

I am trying to profile a set of processes on my CPU. In order to be very precise I want to use the perf stat command to see how many CPU cycles my processes used. This is different from top, where I only see the percentage of the CPU used in a…
manuelgr
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Should we measure the average or the minimum execution time of a routine?

When we measure the execution time of a routine (always using the same input) we don't get the same result (time) even if we should because the program runs in a multitasking environment. Even if we run our program as 'high priority' some…
Gabriel
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Java heap profiling between two events

I want to gather the heap usage of a program. In particular from a specific start event up to an end event, and with a set interval for example every 10ms. I tried to implement something like this myself, which is the following code. It works for…
KeyboardDrummer
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Aggregate multiple perf profiles

I'm working on a managed runtime. A code change went in which resulted in a regression in the rate at which the JIT compiler processes compilations. (That is, the act of compiling is slower, the resulting code being generated is unaffected.) This…
shroudednight
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what is the best tool to profile asp.net mvc code?

Are there any good free or trial tool to use to profile performance bottlenecks in asp.net mvc c# code?
leora
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