tendermint

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Author	SHA1	Message	Date
Emmanuel T Odeke	3e92899bd9	internal/libs/protoio: optimize MarshalDelimited by plain byteslice allocations+sync.Pool (#7325 ) Noticed in profiles that invoking *VoteSignBytes always created a bytes.Buffer, then discarded it inside protoio.MarshalDelimited. I dug further and examined the call paths and noticed that we unconditionally create the bytes.Buffer, even though we might have proto messages (in the common case) that implement MarshalTo([]byte), and invoked varintWriter. Instead by inlining this case, we skip a bunch of allocations and CPU cycles, which then reflects properly on all calling functions. Here are the benchmark results: ```shell $ benchstat before.txt after.txt name old time/op new time/op delta types.VoteSignBytes-8 705ns ± 3% 573ns ± 6% -18.74% (p=0.000 n=18+20) types.CommitVoteSignBytes-8 8.15µs ± 9% 6.81µs ± 4% -16.51% (p=0.000 n=20+19) protoio.MarshalDelimitedWithMarshalTo-8 788ns ± 8% 772ns ± 3% -2.01% (p=0.050 n=20+20) protoio.MarshalDelimitedNoMarshalTo-8 989ns ± 4% 845ns ± 2% -14.51% (p=0.000 n=20+18) name old alloc/op new alloc/op delta types.VoteSignBytes-8 792B ± 0% 600B ± 0% -24.24% (p=0.000 n=20+20) types.CommitVoteSignBytes-8 9.52kB ± 0% 7.60kB ± 0% -20.17% (p=0.000 n=20+20) protoio.MarshalDelimitedNoMarshalTo-8 808B ± 0% 440B ± 0% -45.54% (p=0.000 n=20+20) name old allocs/op new allocs/op delta types.VoteSignBytes-8 13.0 ± 0% 10.0 ± 0% -23.08% (p=0.000 n=20+20) types.CommitVoteSignBytes-8 140 ± 0% 110 ± 0% -21.43% (p=0.000 n=20+20) protoio.MarshalDelimitedNoMarshalTo-8 10.0 ± 0% 7.0 ± 0% -30.00% (p=0.000 n=20+20) ``` Thanks to Tharsis who tasked me to help them increase TPS and who are keen on improving Tendermint and efficiency.	3 years ago
Marko	719e028e00	libs: internalize some packages (#6366 ) ## Description Internalize some libs. This reduces the amount ot public API tendermint is supporting. The moved libraries are mainly ones that are used within Tendermint-core.	4 years ago
Erik Grinaker	660e72a12f	p2p/conn: migrate to Protobuf (#4990 ) Migrates the p2p connections to Protobuf. Supersedes #4800. gogoproto's `NewDelimitedReader()` uses an internal buffer, which makes it unsuitable for reading individual messages from a shared reader (since any remaining data in the buffer will be discarded). We therefore add a new `protoio` package with an unbuffered `NewDelimitedReader()`. Additionally, the `NewDelimitedWriter()` returns the number of bytes written, and we've added `MarshalDelimited()` and `UnmarshalDelimited()`, to ease migration of existing code.	5 years ago

Author

SHA1

Message

Date

Emmanuel T Odeke

3e92899bd9

internal/libs/protoio: optimize MarshalDelimited by plain byteslice allocations+sync.Pool (#7325 )

Noticed in profiles that invoking *VoteSignBytes always created a
bytes.Buffer, then discarded it inside protoio.MarshalDelimited.
I dug further and examined the call paths and noticed that we
unconditionally create the bytes.Buffer, even though we might
have proto messages (in the common case) that implement
MarshalTo([]byte), and invoked varintWriter. Instead by inlining
this case, we skip a bunch of allocations and CPU cycles,
which then reflects properly on all calling functions. Here
are the benchmark results:

```shell
$ benchstat before.txt after.txt
name                                        old time/op    new time/op      delta
types.VoteSignBytes-8                       705ns ± 3%     573ns ± 6%       -18.74% (p=0.000 n=18+20)
types.CommitVoteSignBytes-8                 8.15µs ± 9%    6.81µs ± 4%      -16.51% (p=0.000 n=20+19)
protoio.MarshalDelimitedWithMarshalTo-8     788ns ± 8%     772ns ± 3%       -2.01%  (p=0.050 n=20+20)
protoio.MarshalDelimitedNoMarshalTo-8       989ns ± 4%     845ns ± 2%       -14.51% (p=0.000 n=20+18)

name                                        old alloc/op   new alloc/op    delta
types.VoteSignBytes-8                       792B ± 0%      600B ± 0%       -24.24%  (p=0.000 n=20+20)
types.CommitVoteSignBytes-8                 9.52kB ± 0%    7.60kB ± 0%     -20.17%  (p=0.000 n=20+20)
protoio.MarshalDelimitedNoMarshalTo-8       808B ± 0%      440B ± 0%       -45.54%  (p=0.000 n=20+20)

name                                        old allocs/op  new allocs/op   delta
types.VoteSignBytes-8                       13.0 ± 0%      10.0 ± 0%       -23.08%  (p=0.000 n=20+20)
types.CommitVoteSignBytes-8                 140 ± 0%       110 ± 0%        -21.43%  (p=0.000 n=20+20)
protoio.MarshalDelimitedNoMarshalTo-8       10.0 ± 0%      7.0 ± 0%        -30.00%  (p=0.000 n=20+20)
```

Thanks to Tharsis who tasked me to help them increase TPS and who
are keen on improving Tendermint and efficiency.

3 years ago

Marko

719e028e00

libs: internalize some packages (#6366 )

## Description

Internalize some libs. This reduces the amount ot public API tendermint is supporting. The moved libraries are mainly ones that are used within Tendermint-core.

4 years ago

Erik Grinaker

660e72a12f

p2p/conn: migrate to Protobuf (#4990 )

Migrates the p2p connections to Protobuf. Supersedes #4800.

gogoproto's `NewDelimitedReader()` uses an internal buffer, which makes it unsuitable for reading individual messages from a shared reader (since any remaining data in the buffer will be discarded). We therefore add a new `protoio` package with an unbuffered `NewDelimitedReader()`. Additionally, the `NewDelimitedWriter()` returns the number of bytes written, and we've added `MarshalDelimited()` and `UnmarshalDelimited()`, to ease migration of existing code.

5 years ago

2 Commits (ab9963acb32ef4f2efe30c21cfc1102dd7e7770b)