Crates / iai-callgrind / Alternatives
Rust crate alternatives · data Oct 27, 2026
Alternatives to iai-callgrind
Short answerThe closest alternatives to iai-callgrind on crates.io data are criterion (753K real downloads a day), divan (43.6K real downloads a day), tracing-core (2.6M real downloads a day). Of the 8 we list, the most used is tracing-core, and 6 shipped a release in the last year. iai-callgrind itself gets 6,715 a day with 120 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs iai-callgrind | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| criterion Foundational | 753,315 | 112.18x | 19,337 | 9mo | category Profiling, keyword "benchmark" | compare |
| divan Established | 43,596 | 6.49x | 545 | 19mo | category Profiling, keyword "benchmark" | compare |
| tracing-core Established | 2,617,281 | 389.77x | 386 | 10mo | category Profiling | compare |
| tracing Foundational | 2,611,879 | 388.96x | 46,220 | 10mo | category Profiling | compare |
| tracing-attributes Pulled in | 2,272,684 | 338.45x | 48 | 11mo | category Profiling | compare |
| tracing-subscriber Foundational | 1,919,774 | 285.89x | 20,192 | 7mo | category Profiling | compare |
| static_assertions Widely used | 1,442,265 | 214.78x | 1,688 | 7.0y | category Testing | compare |
| gimli Established | 1,195,625 | 178.05x | 206 | 4mo | category Profiling | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with iai-callgrind; read its description before you swap.
- More dependents means more answered questions and a smaller chance it disappears.
- Check the last release against how fast you need fixes. For iai-callgrind: is it still maintained?
Rules
Alternatives = tracked crates (top 1000 by downloads) that share a specific crates.io category (2 points each) or keyword (3 points each) with iai-callgrind, most similar first; its own parts (same name prefix) and crates it depends on or that depend on it are left out, because those are companions, not substitutes. Real downloads = quiet-day median, crates.io data Oct 27, 2026. Built when we find 3 or more.
Up next
The closest alternative: Foundational and steady. 753,315 real downloads a day.criterionRust crate. Statistics-driven micro-benchmarking library. Real use: 753K downloads a day on quiet days; 19,337 crates depend on it.Read it next →Also worth your time
Art: Nicholas Roerich, Nag Lake (1925). Public domain, via Wikimedia Commons.
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