Ben Frederickson

icon indicating a website link https://www.benfrederickson.com icon indicating an email [email protected]

icon company @nvidia icon location Vancouver, BC, Canada icon location Working on open source data science tools @nvidia

Results 249 comments of Ben Frederickson

Improve visualization of results

Thanks for sharing! Thats a great article

svg width defaults to 300px instead of 100%

We're using the [inferno](https://github.com/jonhoo/inferno) project to write out these SVG files - I think to fix this issue you'll have to raise an issue there. However, I don't see this...

Idle detection discrepancies between OSX and Linux

Thanks for your patience on this - It seems like your test program is almost always idle (as shown by running the ```--idle``` option). This means that any false positives...

Startup overhead

The option to sample native threads can be quite a bit more intensive than without - the easiest thing for you to do is either remove the '-n' flag to...

Native profiling on macOS

There was a dev release with OSX native profling: ```pip install py-spy==0.2.0.dev4``` will install the last version. It didn't work all that well though, so I removed it =(. It...

Native profiling on macOS

For OSX - I had some code that attempted to read in the the compact unwinding format for OX, but I was seeing fairly high error rates and removed it...

Profiling native threads?

Not right now =( We merge the native stack traces into python frames - but not vice versa. You'll have to profile with other native profiling tools like perf etc...

Dumping outputs without interrupting the profiling

I'm not totally opposed to communicating through processes / signals - but I think it might be cleaner for py-spy to have a python api that will let you control...

Support native extensions on ARM

I think this is a great idea! Not only will this let us profile native extensions, this will also let us figure out reliably if the thread is idle or...

traces include time spent in garbage collector

If it's GC time you might be able to see it by enabling native stack traces - we include certain python functions like GC in the stack traces. Do you...