plasma-umass/coz
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Coz: Causal Profiling
26 mentions on Hacker News by 24 people: 11 stories, 15 comments · first 2014-12-10 · latest 2026-10-07
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…global performance utterly unchanged, everyone gets to "optimize" their own code. Something like https://github.com/plasma-umass/coz might be the way forward. https://www.youtube.com/watch?v=r-TLSBdHe1A
comment by yencabulator · 2025-10-17 · in Can we know whether a profiler is accurate? -
…- Coz: A causal profiler that tells you where to optimize your code (C/C++/Rust/Swift/Java) - https://github.com/plasma-umass/coz - CSrankings: Ranks the world's CS departments - https://csrankings.org/ - CoverUp: Automatically generates…
comment by pella · 2025-09-09 · in ATC/OSDI '25 Joint Keynote: Accelerating Software Dev: The LLM (R)Evolution [video] -
Obviously from the paths it's Linux. Running on Arch. Looks to be an open issue FWIW: https://github.com/plasma-umass/coz/issues/180 The project also sees very little meaningful maintenance activity which leads me to believe it failed to…
comment by vlovich123 · 2024-04-21 · in Coz: Causal Profiling -
…Coz is pretty trivial to set up with Zig too. 1. https://m.youtube.com/watch?v=r-TLSBdHe1A 2. https://github.com/plasma-umass/coz
comment by j-pb · 2023-06-17 · in Poop: Performance Optimizer Observation Platform -
For the impatient, the profiler is available at https://github.com/plasma-umass/coz
comment by Tiberium · 2021-12-13 · in Show HN: 10-40% faster LZMA decoder using x86 CMOVcc -
Take a look at coz the causal profiler: https://github.com/plasma-umass/coz From what I know this is the closest project that fits your description.
comment by efferifick · 2021-12-06 · in Tip: Time-Proportional Instruction Profiling [pdf] -
…is a technique which is relevant specifically because profiling can miss the forest for the trees: https://github.com/plasma-umass/coz It's really easy to write a benchmark which measures a different scenario from what your application is…
comment by 6keZbCECT2uB · 2021-07-12 · in (Risp (In (Rust) (Lisp))) -
…And who knows, maybe they'd even be interested in using coz afterwards: https://github.com/plasma-umass/coz
comment by vanderZwan · 2021-04-04 · in Prefix Trees in Action -
…2. https://www.youtube.com/watch?v=r-TLSBdHe1A 3. https://arxiv.org/pdf/1608.03676v1.pdf 4. https://github.com/plasma-umass/coz
comment by moonchild · 2020-06-24 · in C performance mystery: delete unused string constant -
…to meet the user on their knowledge level so they can dig in as deep as they need to/want to. [1] https://github.com/plasma-umass/coz [2] https://arxiv.org/abs/1608.03676
comment by vlovich123 · 2020-02-24 · in Reflections on Software Performance -
…strangeloop), which I highly recommend. Lots of really nice insight, even outside of this tool. [1] https://github.com/plasma-umass/coz [2] https://www.youtube.com/watch?v=r-TLSBdHe1A
comment by jaybosamiya · 2020-01-19 · in Measure code execution time accurately in Python -
…Video presentation: https://www.youtube.com/watch?v=jE0V-p1odPg&t=0m28s Coz: https://github.com/plasma-umass/coz JCoz (Java version): http://decave.github.io/JCoz/ and https://github.com/Decave/JCoz
comment by richdougherty · 2019-12-03 · in Amazon CodeGuru – Preview -
…to raw flame graphs. If you have time to watch their talk, it's linked on the github readme. [1] https://github.com/plasma-umass/coz/blob/master/README.md
comment by eyegor · 2019-11-11 · in Evaluation of CPU profiling tools: gperftools, Valgrind and gprof (2015) -
Better link for paper: https://github.com/plasma-umass/coz/blob/master/Coz-Curtsing...
comment by emeryberger · 2015-11-03 · in A better way to profile multithreaded programs -
It is worth noting that the profiler is fully open-source: https://github.com/plasma-umass/coz . There is even a package for Arch Linux!
comment by Jonhoo · 2015-10-15 · in COZ: Finding Code That Counts with Causal Profiling [pdf]