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say function, not fn

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Niko Matsakis 2018-09-07 10:55:46 -04:00 committed by Who? Me?!
parent fb59bf5383
commit cdc688451e
1 changed files with 3 additions and 3 deletions
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6
src/profiling/with_perf.md
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@ -170,7 +170,7 @@ The `'{do_mir_borrowck}'` argument is called the **matcher**. It
specifies the test to be applied on the backtrace. In this case, the specifies the test to be applied on the backtrace. In this case, the
`{X}` indicates that there must be *some* function on the backtrace `{X}` indicates that there must be *some* function on the backtrace
that meets the regular expression `X`. In this case, that regex is that meets the regular expression `X`. In this case, that regex is
just the name of the fn we want (in fact, it's a subset of the name; just the name of the function we want (in fact, it's a subset of the name;
the full name includes a bunch of other stuff, like the module the full name includes a bunch of other stuff, like the module
path). In this mode, perf-focus just prints out the percentage of path). In this mode, perf-focus just prints out the percentage of
samples where `do_mir_borrowck` was on the stack: in this case, 29%. samples where `do_mir_borrowck` was on the stack: in this case, 29%.
@ -208,8 +208,8 @@ Percentage : 0%
``` ```
Here we used the `..` operator to ask "how often do we have Here we used the `..` operator to ask "how often do we have
`do_mir_borrowck` on the stack and then, later, some fn whose name `do_mir_borrowck` on the stack and then, later, some function whose
begins with `rusc::traits`?" (basically, code in that module). It name begins with `rusc::traits`?" (basically, code in that module). It
turns out the answer is "almost never" — only 12 samples fit that turns out the answer is "almost never" — only 12 samples fit that
description (if you ever see *no* samples, that often indicates your description (if you ever see *no* samples, that often indicates your
query is messed up). query is messed up).