Hi, On 2013.07.05 02:02:59 +1000, Huon Wilson wrote: > It looks like it's a lot more consistent than the original [IRFY], > so it might actually be useful for identifying performance issues. > (Speaking of performance issues, it takes extra::json ~1.8s to parse > one of the 4 MB mem.json file; Python takes about 150ms; the `perf` > output http://ix.io/6tV, a *lot* of time spent in allocations.)
This is to a large part due to stack growth. A flamegraph that shows this can be found here: http://i.minus.com/1373041398/43t7zpBOcgy3CeDpkSht0w/inUqVLvZGEUfx.svg Setting RUST_MIN_STACK to 8000000 cuts runtime in half for me. Björn _______________________________________________ Rust-dev mailing list [email protected] https://mail.mozilla.org/listinfo/rust-dev
