delta/node-new.git/src/node_perf.h, branch sam-github-tsc

src: avoid using elevated v8 namespaces in node_perf.h

2020-04-02T16:33:25+00:00

Signed-off-by: James M Snell 

PR-URL: https://github.com/nodejs/node/pull/32468
Reviewed-By: Anna Henningsen

perf,src: add HistogramBase and internal/histogram.js

2020-03-02T19:01:00+00:00

Separating this out from the QUIC PR to allow it to be separately
reviewed. The QUIC implementation makes use of the hdr_histogram
for dynamic performance monitoring. This introduces a BaseObject
class that allows the internal histograms to be accessed on the
JavaScript side and adds a generic Histogram class that will be
used by both QUIC and perf_hooks (for the event loop delay
monitoring).

Signed-off-by: James M Snell 

PR-URL: https://github.com/nodejs/node/pull/31988
Reviewed-By: Anna Henningsen 
Reviewed-By: Matteo Collina

perf_hooks: add property flags to GCPerformanceEntry

2020-02-04T16:41:44+00:00

PR-URL: https://github.com/nodejs/node/pull/29547
Reviewed-By: James M Snell 
Reviewed-By: Chengzhong Wu

src: change env.h includes for forward declarations

2019-10-31T13:11:05+00:00

Due to how the Environment class is used through the codebase,
there are a lot of includes referencing either env.h or env-inl.h.
This can cause that when any development touches those libraries,
a lot of files have to be recompiled.
This commit attempts to change those includes by forward declarations
when possible to mitigate the issue.

Refs: https://github.com/nodejs/node/issues/27531

PR-URL: https://github.com/nodejs/node/pull/30133
Reviewed-By: Anna Henningsen 
Reviewed-By: Colin Ihrig 
Reviewed-By: Joyee Cheung 
Reviewed-By: David Carlier 
Reviewed-By: Franziska Hinkelmann

src: make ELDHistogram a HandleWrap

2019-09-08T03:57:35+00:00

This simplifies the implementation of ELDHistogram a bit,
and more generally allows us to have weak JS references
associated with `HandleWrap`s.

PR-URL: https://github.com/nodejs/node/pull/29317
Reviewed-By: James M Snell

src: apply clang-tidy rule modernize-use-equals-default

2019-04-24T17:32:43+00:00

PR-URL: https://github.com/nodejs/node/pull/27264
Reviewed-By: Refael Ackermann

src: port coverage serialization to C++

2019-04-06T04:01:45+00:00

This patch moves the serialization of coverage profiles into
C++. With this we no longer need to patch `process.reallyExit`
and hook into the exit events, but instead hook into relevant
places in C++ which are safe from user manipulation. This also
makes the code easier to reuse for other types of profiles.

PR-URL: https://github.com/nodejs/node/pull/26874
Reviewed-By: Ben Coe

perf_hooks: implement histogram based api

2019-02-08T17:20:18+00:00

Add a sampling-based event loop delay monitor.

```js
const { monitorEventLoopDelay } = require('perf_hooks');

const h = monitorEventLoopDelay();

h.enable();

h.disable();

console.log(h.percentiles);
console.log(h.min);
console.log(h.max);
console.log(h.mean);
console.log(h.stddev);
console.log(h.percentile(50));
```

PR-URL: https://github.com/nodejs/node/pull/25378
Reviewed-By: Matteo Collina 
Reviewed-By: Gireesh Punathil 
Reviewed-By: Stephen Belanger 
Reviewed-By: Richard Lau 
Reviewed-By: Anna Henningsen

src: delete unreachable code in node_perf.h

2019-02-06T04:49:27+00:00

Signed-off-by: gengjiawen 

PR-URL: https://github.com/nodejs/node/pull/25850
Reviewed-By: Luigi Pinca 
Reviewed-By: James M Snell

src: pass along errors from perf obj instantiation

2019-01-29T19:02:02+00:00

PR-URL: https://github.com/nodejs/node/pull/25734
Reviewed-By: James M Snell 
Reviewed-By: Gus Caplan