This will break `perf_image` until the new CI image is built due to the
newly required `--all-tags` parameter to `docker push` that isn't
available for the docker version we run on buster.
Use `codegen-units = 1`, thin-LTO and debug section compression to make our binary smaller (which is good for deploy and
test times) and faster.
# Summary
The binary size of `influxdb_iox` after building with:
```console
$ cargo build --release --no-default-features --features="aws,gcp,azure,jemalloc_replacing_malloc"
```
The profile was:
```toml
[profile.release]
debug = true
```
The commit was:
```text
89ece8b493
```
The size results are:
| Method | Size |
| ------------------------------------------ | ----- |
| baseline | 833MB |
| baseline + dbg compression | 222MB |
| baseline + strip | 49MB |
| codegen-units | 520MB |
| codegen-units + strip | 40MB |
| codegen-units + dbg compression | 143MB |
| thin LTO | 715MB |
| thin LTO + strip | 49MB |
| thin LTO + dbg compression | 199MB |
| codegen-units + thin LTO | 449MB |
| codegen-units + thin LTO + strip | 40MB |
| codegen-units + thin LTO + dbg compression | 130MB |
For the methods that were successfully measured I couldn't really see any compile time differences on my laptop.
# Methods
## Strip
Remove debug symbols. We don't really want this, so this is just to get an idea of the size
```console
$ strip baseline
```
## Debug Sections compression
Debug sections make a large amount of our binary size (a stripped executable is 49MB instead of 833MB). Since we like to
have debug symbols we cannot just strip them. However these symbols are only used for:
- backtrace generation (something went wrong, not BAU)
- profiling
- debugging
So in normal operation and most test scenarios, we're just wasting memory. So we could compress them:
```console
$ objcopy --compress-debug-sections baseline baseline-dbg_compressed
```
There is also elfutils:
```console
$ eu-elfcompress test
```
Elfutils nearly ends up with the same size (220MB instead of 222MB that objcopy achieves), but takes more time and is
probably not worth it.
Note that compressed debug sections exist since many years. The Rust ecosystem supports reading them since over a year,
see:
- <https://github.com/gimli-rs/gimli/issues/195>
- <https://github.com/rust-lang/backtrace-rs/issues/342>
## Codegen Units
The rust compiler parallelizes codegen work. This split into units however means that optimizations are somewhat
limited. This can be change by:
```toml
[profile.release]
...
codegen-units = 1
```
As a nice side effect this should also make our code faster.
## Thin LTO
Get LLVM to run "thin" Link Time Optimization:
```toml
[profile.release]
...
lto = "thin"
```
As a nice side effect this should also make our code faster.
## Fat LTO
Get LLVM to run "fat" Link Time Optimization:
```toml
[profile.release]
...
lto = "fat"
```
There are no results for this because this took a massive amount of memory and CPU time and did not finish on my system.
* feat: migrate server to DbWrite (#2724)
* chore: print perf log output
* fix: don't suppress CI status code
* chore: review feedback
* fix: don't error on empty line protocol write payloads
* fix: test
* fix: test
* feat: Do not rebuild query_tests if .sql or .expected change
* feat: Add CI check
* refactor: move some sql tests to .sql files
* tests: port tests / expected results to data files
* fix: restore old name check-flatbuffers
For now we ignore warnings (e.g. "crate is yanked" or "crate is
unmaintained") because:
- internal crates w/ names of crates.io crates (e.g. `query`) are
treated like crates.io-crates even though they shouldn't, see
https://github.com/rustsec/rustsec/issues/232
- many crates are currently unmaintained and require a bit of upstream
work (e.g. `chrono` is currently not very active but uses an old
version of `time` which uses the unmaintained `stdweb`)
Closes#2575.
* fix: perf broken after proto changes
* feat: add perf to CI
* chore: try different python version selector script
* chore: several fixes to CI
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
* feat: add jaeger and otlp flags
* chore: add jaeger and otlp features to CI test and deploy image
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
Marco Neumann
Carol (Nichols || Goulding)
kodiakhq[bot]
Raphael Taylor-Davies
Andrew Lamb
Nga Tran
Jacob Marble
Marko Mikulicic
Marko Mikulicic
Andrew Lamb
Luke Bond
Luke Bond
Edd Robinson