Questions tagged [profiling]

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Why does my program scale so poorly on a 32 cores AMD CPU? [closed]

I want to concurrently run independent instances of a program on our 32 core machine (AMD Threadripper 2990wx, 128GB DDR4 RAM, Ubuntu 18.04). The performance gains are almost null after about 12 ...
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6 views

setup configuration for Xcode allocations profiling instrument

I'm trying to figure where is the cause of the memory leak in my iOS app. In one of the tutorial I've found online, the Allocations screen looks something like this. It HAS a configuration pane on the ...
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profiling Phoronix blogbench with perf failing

I am failing to record perf events for Phoronix Blogbench with the following error: Error: Too many events are opened. Probably the maximum number of open file descriptors has been reached. Hint: Try ...
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14 views

Format JProfiler queries

Is it possible to format queries in JProfiler? I can see all executed queries in the JDBC tab, but when clicking on "Show node details", a single line SQL statement is shown. This isn't very readable. ...
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0answers
1k views

Process Explorer (sysinternals), save lines/graphs as txt?

I'm using the "Process Explorer" from sysinternals to monitor the memory consumption of a specific process over time. This is quite helpful for the first step. For I a deeper analysis I would like to ...
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88 views

How to profile long session initialization during boot process in Windows 8? [duplicate]

My computer started to boot for 10 minutes. It has SSD system drive and was booting for 15 seconds previously. Is it possible to know, what does it doing during this time? The delay occurs before ...
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2answers
894 views

The “gmon.out” file is getting created everywhere

Every time I run a program, or exit a shell. There will be a "gmon.out" file generated at the working directory. How to stop this behavior?
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98 views

Tool similar to `strace` but for CPU instructions

I am hoping to find something similar to strace which will yield the instructions used by the CPU. For example, I have a simple loop which calculates a sum and prints out every tenth iteration float ...
4
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2answers
212 views

Are processes in Windows 7 cached?

I'm profilling my java application using Windows Performance Analyser. My app is a simple parser, which uses external command-line program to parse files. This external program is called for each file....
5
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1answer
964 views

Is there a way to print out execution time (wall time) in zsh when it exceeds certain configurable threshold?

@mpy 's comment was correct. So I'm rephrasing my question. I really like REPORTTIME feature in zsh, but it only reports time when user+system time is greater than $REPORTTIME according to zsh doc. Is ...
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1answer
380 views

profiling file reading speed via /dev/null?

I am profiling the speed at which a certain Linux program reads a certain input file using different amount of threads by doing this: time ~/src/myprogram -t $t inputfile 1>/dev/null 2>/dev/...
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2answers
228 views

How do I identify resource hogs on Firefox?

I have installed a package of Firefox extensions that installed a few extensions to my Firefox. Recently I have noticed, that the resource consumption of the Firefox process rose to unacceptable ...
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3answers
11k views

Is there any command like time, but for memory usage?

Is there any command like time, but that reports more statistics? It would be great if I could do something like: $ statistics some_command time: real 0m3.002s user 0m0.000s sys ...
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1answer
2k views

How to measure memory bandwidth usage

I am trying to determine how close to being bandwidth-limited a code I have written is, so I was wondering whether there are any tools out there to determine memory bandwidth usage? The code I have is ...
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4answers
1k views

Good software to monitor disk io, memory and cpu use? [closed]

I'm developing a website. I was wondering if there are any tools out there that make it easy to log and graph usage statistics of how my cpu, memory, disk and network are used. I need to somehow know ...
6
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1answer
997 views

Profiling add-ons in firefox

One new feature of ie9 I like is that it alerts you to which add-ons are making your browser run slowly. Is there a way to get access to similar information in firefox?
2
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1answer
63 views

How to build a profile of my Macbook Pro

I'm about to purchase a new macbook pro since mine is beginning to show signs of early death (hardware failure, not worth fixing, its an old laptop from the first generation of MBPs). I'm not sure ...
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3answers
100 views

Linux Profiling

I want to profile my application which is most of the time doing I/O on a USB device. I need to see what process are running on system and what each process is exactly doing whole the time. ...