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SIG Scalability annual report 2022

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Wojciech Tyczyński 2023-03-24 14:15:43 +01:00
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sig-scalability/annual-report-2022.md
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1. What work did the SIG do this year that should be highlighted? 1. What work did the SIG do this year that should be highlighted?
- - We helped validating scalability and reliability impact of many features across whole year.
- - We extended scalability testing framework and built a number of new optional tests to
- cover other usecases (e.g. batch workloads)
2. What initiatives are you working on that aren't being tracked in KEPs? 2. What initiatives are you working on that aren't being tracked in KEPs?
- - Localized scalability/performance improvements across the codebase, e.g.:
- - Improved LIST calls performance for rare selectors
- - Optimizing kube-apiserver compression
- Optimizing watch by reducing number of allocations
- Improved kube-apiserver graceful shutdown
- All the improvements to scalability test frameworks in [perf-tests]
3. KEP work in 2022 (v1.24, v1.25, v1.26): 3. KEP work in 2022 (v1.24, v1.25, v1.26):
- SIG Scalability doesn't own non-test code, so all below are officially
tracked by other SIGs, but are driven (or co-driven) by SIG Scalability.
- Stable
- [1164 - Deprecate and Remove SelfLink](https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/1164-remove-selflink) - 1.24
- [1904 - Efficient Watch Resumption](https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/1904-efficient-watch-resumption) - 1.24
- Beta
- [1040 - Priority and Fairness for API Server Requests](https://github.com/kubernetes/enhancements/blob/master/keps/sig-api-machinery/1040-priority-and-fairness/README.md) - 1.24, 1.25, 1.26
- [1669 - Proxy Terminating Endpoints](https://github.com/kubernetes/enhancements/blob/master/keps/sig-network/1669-proxy-terminating-endpoints/README.md) - 1.26
- Alpha
- [3453 - Minimize IPtables Restore](https://github.com/kubernetes/enhancements/tree/master/keps/sig-network/3453-minimize-iptables-restore)
- Pre-alpha
- [3157 - Watch List](https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/3157-watch-list) - 1.26
## Project health ## Project health
1. What areas and/or subprojects does your group need the most help with? 1. What areas and/or subprojects does your group need the most help with?
Any areas with 2 or fewer OWNERs? (link to more details) Any areas with 2 or fewer OWNERs? (link to more details)
- - Each SIG Scalability subproject could benefit from additional hands.
- However, the Scalability Test Frameworks and Scalability and Performance tests and validation
- are the ones with the lower barier to entry - see [perf-tests] repository.
Other areas require both very deep and wide understanding of Kubernetes before making reasonable contributions.
2. What metrics/community health stats does your group care about and/or measure? 2. What metrics/community health stats does your group care about and/or measure?
- - We care mostly about metrics for our main repository [perf-tests]. We measure them through [devstats]. We keep track of number of reviewers, opened issues and PRs merged.
-
-
3. Does your [CONTRIBUTING.md] help **new** contributors engage with your group specifically by pointing 3. Does your [CONTRIBUTING.md] help **new** contributors engage with your group specifically by pointing
to activities or programs that provide useful context or allow easy participation? to activities or programs that provide useful context or allow easy participation?
- - Yes, [CONTRIBUTING.md] points to maintained list of issues with label `good first issue`.
4. If your group has special training, requirements for reviewers/approvers, or processes beyond the general [contributor guide], 4. If your group has special training, requirements for reviewers/approvers, or processes beyond the general [contributor guide],
does your [CONTRIBUTING.md] document those to help **existing** contributors grow throughout the [contributor ladder]? does your [CONTRIBUTING.md] document those to help **existing** contributors grow throughout the [contributor ladder]?
- - We don't have any special requirements for reviewers/approvers, but most of core areas of sig-scalability require
very deep and wide understanding of the whole Kubernetes. It is much easier to start with our testing infrastructure.
5. Does the group have contributors from multiple companies/affiliations? 5. Does the group have contributors from multiple companies/affiliations?
- - Yes, we have contributors from [multiple companies](https://k8s.devstats.cncf.io/d/8/company-statistics-by-repository-group?orgId=1&var-period=d7&var-metric=contributions&var-repogroup_name=SIG%20Scalability&var-repo_name=kubernetes%2Fkubernetes&var-companies=All&from=1641013200000&to=1672462800000).
6. Are there ways end users/companies can contribute that they currently are not? 6. Are there ways end users/companies can contribute that they currently are not?
If one of those ways is more full time support, what would they work on and why? If one of those ways is more full time support, what would they work on and why?
- - End users usually come with questions about scalability, they rarely want to contribute.
- - End user could also help us by providing and documenting their scalability needs to help us
better define our goals.
## Membership ## Membership
- Primary slack channel member count: - Primary slack channel member count: 2299
- Primary mailing list member count: - Primary mailing list member count: 260
- Primary meeting attendee count (estimated, if needed): - Primary meeting attendee count (estimated, if needed): 7
- Primary meeting participant count (estimated, if needed): - Primary meeting participant count (estimated, if needed): 5
- Unique reviewers for SIG-owned packages: <!-- in future, this will be generated from OWNERS files referenced from subprojects, expanded with OWNERS_ALIASES files --> - Unique reviewers for SIG-owned packages: 6
- Unique approvers for SIG-owned packages: <!-- in future, this will be generated from OWNERS files referenced from subprojects, expanded with OWNERS_ALIASES files --> - Unique approvers for SIG-owned packages: 5
Include any other ways you measure group membership Include any other ways you measure group membership
## [Subprojects](https://git.k8s.io/community/sig-scalability#subprojects) ## [Subprojects](https://git.k8s.io/community/sig-scalability#subprojects)
**New in 2022:**
- None
**Retired in 2022:**
- None
**Continuing:** **Continuing:**
- [kubernetes-scalability-and-performance-tests-and-validation](https://git.k8s.io/community/sig-scalability#kubernetes-scalability-and-performance-tests-and-validation)
- kubernetes-scalability-and-performance-tests-and-validation - [kubernetes-scalability-bottlenecks-detection](https://git.k8s.io/community/sig-scalability#kubernetes-scalability-bottlenecks-detection)
- kubernetes-scalability-bottlenecks-detection - [kubernetes-scalability-definition](https://git.k8s.io/community/sig-scalability#kubernetes-scalability-definition)
- kubernetes-scalability-definition - [kubernetes-scalability-governance](https://git.k8s.io/community/sig-scalability#kubernetes-scalability-governance)
- kubernetes-scalability-governance - [kubernetes-scalability-test-frameworks](https://git.k8s.io/community/sig-scalability#kubernetes-scalability-test-frameworks)
- kubernetes-scalability-test-frameworks
## [Working groups](https://git.k8s.io/community/sig-scalability#working-groups) ## [Working groups](https://git.k8s.io/community/sig-scalability#working-groups)
@ -89,16 +107,16 @@ Include any other ways you measure group membership
Operational tasks in [sig-governance.md]: Operational tasks in [sig-governance.md]:
- [ ] [README.md] reviewed for accuracy and updated if needed - [x] [README.md] reviewed for accuracy and updated if needed
- [ ] [CONTRIBUTING.md] reviewed for accuracy and updated if needed - [x] [CONTRIBUTING.md] reviewed for accuracy and updated if needed
(or created if missing and your contributor steps and experience are different or more (or created if missing and your contributor steps and experience are different or more
in-depth than the documentation listed in the general [contributor guide] and [devel] folder.) in-depth than the documentation listed in the general [contributor guide] and [devel] folder.)
- [ ] Subprojects list and linked OWNERS files in [sigs.yaml] reviewed for accuracy and updated if needed - [x] Subprojects list and linked OWNERS files in [sigs.yaml] reviewed for accuracy and updated if needed
- [ ] SIG leaders (chairs, tech leads, and subproject owners) in [sigs.yaml] are accurate and active, and updated if needed - [x] SIG leaders (chairs, tech leads, and subproject owners) in [sigs.yaml] are accurate and active, and updated if needed
- [ ] Meeting notes and recordings for 2022 are linked from [README.md] and updated/uploaded if needed - [ ] Meeting notes and recordings for 2022 are linked from [README.md] and updated/uploaded if needed
- [ ] Did you have community-wide updates in 2022 (e.g. community meetings, kubecon, or kubernetes-dev@ emails)? Links to email, slides, or recordings: - [x] Did you have community-wide updates in 2022 (e.g. community meetings, kubecon, or kubernetes-dev@ emails)? Links to email, slides, or recordings:
- - [Kubecon Valencia](https://kccnceu2022.sched.com/event/ytsB/intro-deep-dive-sig-scalability-marcel-zieba-wojciech-tyczynski-google)
- - [Kubecon Detroit](https://kccncna2022.sched.com/event/182Pr/intro-deep-dive-sig-scalability-marcel-zieba-google)
[CONTRIBUTING.md]: https://git.k8s.io/community/sig-scalability/CONTRIBUTING.md [CONTRIBUTING.md]: https://git.k8s.io/community/sig-scalability/CONTRIBUTING.md
[contributor ladder]: https://git.k8s.io/community/community-membership.md [contributor ladder]: https://git.k8s.io/community/community-membership.md
@ -107,3 +125,5 @@ Operational tasks in [sig-governance.md]:
[sigs.yaml]: https://git.k8s.io/community/sigs.yaml [sigs.yaml]: https://git.k8s.io/community/sigs.yaml
[contributor guide]: https://git.k8s.io/community/contributors/guide/README.md [contributor guide]: https://git.k8s.io/community/contributors/guide/README.md
[devel]: https://git.k8s.io/community/contributors/devel/README.md [devel]: https://git.k8s.io/community/contributors/devel/README.md
[devstats]: k8s.devstats.cncf.io/
[perf-tests]: https://github.com/kubernetes/perf-tests/