kubernetes/test
Kubernetes Submit Queue 68da45623f
Merge pull request #59217 from filbranden/cos1
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Increase RSS limit for runtime from 300MB to 350MB on test creating 100 pods per node.

**What this PR does / why we need it**:

In recent COS image (cos-dev-65), the typical RSS increased a bit. It seems it was already close to the limit and now surpassed it.

I looked at some samples of failures of the test... In [some cases](https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-cosdev-k8sbeta-serial/1270) it seems very close (<1%), a [more representative example](https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-cosdev-k8sbeta-serial/1266)  goes up about ~5% but in [some](https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-cosdev-k8sbeta-serial/1269) [cases](https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-cosdev-k8sbeta-serial/1267) it did go up to close or above 340MB.

I did some tests using just "docker" on the machines, creating 100 "pause" containers. I didn't really see much difference in RSS, though after killing the containers RSS was a bit higher on the host running cos-dev.

I looked at some possible reasons that would explain that:
- Transparent huge pages: confirmed they were disabled;
- Version of docker: same on cos-65, cos-64 and cos-63;
- Version of Go: same, 1.9.2 on cos-64 and cos-65, while 1.9.1 on cos-63 but 64 was already using same as current version;
- Version of systemd (maybe due to systemd libraries linked into Docker?): same on the three images.

I don't really know what can explain this increase... So cc @adityakali in case he has something to add here. Also cc @yguo0905 with whom I discussed the testgrid.




**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
N/A

**Special notes for your reviewer**:
N/A

**Release note**:

```release-note
NONE
```
2018-02-06 00:43:13 -08:00
..
conformance Create Conformance document to display all tests that belong to Conformance suite 2018-01-15 14:17:48 -08:00
e2e Merge pull request #59217 from filbranden/cos1 2018-02-06 00:43:13 -08:00
e2e_node Merge pull request #59094 from jianglingxia/jlx-013114 2018-02-03 22:36:09 -08:00
fixtures Revert k8s.gcr.io vanity domain 2017-12-22 14:36:16 -08:00
images Update tests to use the hostexec:1.1 image 2018-01-30 17:31:52 -08:00
integration add minimal types for service account TokenRequest API 2018-02-05 11:39:27 -08:00
kubemark Update etcd server version to 3.2.13 2018-02-02 17:25:13 -08:00
list Autogenerate BUILD files 2017-12-23 13:12:11 -08:00
soak Autogenerate BUILD files 2017-12-23 13:12:11 -08:00
utils Merge pull request #58184 from yguo0905/hostexec 2018-02-05 13:15:33 -08:00
BUILD Add conformance test regression test. 2017-10-27 15:31:20 -07:00
OWNERS fabiano no longer a thing 2017-12-19 16:37:12 -02:00
test_owners.csv kubelet: remove the rktshim directory 2018-01-26 18:03:34 -08:00
test_owners.json Remove all traces of federation 2017-10-26 13:37:37 -07:00