Difference between revisions of "VPP/AArch64"

Revision as of 08:41, 11 January 2018

Meeting Details

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IRC Channel

#fdio-arm on freenode.net

FD.io Lab

Build, unit test, packaging

The following is tracked manually until hardware is integrated into upstream FD.io CI

Status on commit: 9cfb11787f24e90ad14697afefbb2dd5969b2951 (Mon Jan 8 01:29:34 2018)

kubeproxy tests are broken on purpose: corresponding features are not fully implemented

Timing consideration on platform: Hierofalcon with Cortex-A57 & Fedora 26

• Might want to have a look at this patch which adds make config: https://gerrit.fd.io/r/#/c/9200/

CSIT

https://wiki.fd.io/view/CSIT/AArch64

AArch64 Porting & Tuning

All: JIRA issues with ARM64 label

Assigned and New:

Known Issues

Compilation may fail on systems with less than 1GB memory per core. One workaround is to search for -j in build-root/Makefile and multiply by 1 instead of 2.

GCC 5.3.x ICEs during FP register allocation. Please use GCC 5.4+.

Try disabling ASLR if experiencing random crashes: sysctl -w kernel.randomize_va_space=0

Recent Patches

Meeting Minutes

1/10/2018

• Meeting moved 2 hours earlier - 6AM PT / 3PM CET / 7:30PM IST / 10PM CST
• FD.io lab
  • Cavium ThunderX shipping soon
• VPP
  • Kumar to look at VPP-1126
  • Gabriel proposed https://gerrit.fd.io/r/#/c/10049/ as follow-up to Damjan's patch
• CSIT
  • Gabriel's patch for aarch64 support in CSIT merged
  • VirtualBox not supported on Arm / Vagrant unknown
    • This is OK for upstream since automation expects VMs to already exist
• Performance
  • Need plan for 1T; use TaiShans that were sent to lab
• AIs
  • Brian: Follow up with Vanessa and EdW regarding 'resource issue'
  • Gabriel: Update CSIT wiki page; which tests are passing/failing?
  • Brian: Check with Vanessa how to split machines between CI jobs and CSIT jobs

1/3/2018

• FD.io lab
  • One OD1000 sent for RMA
  • Huawei PO sent out
  • Cavium PO sent out (?)
• VPP
  • Gabriel working on patch for "show cpu" to display MIDR as human readable
  • Nitin sent preliminary patch for vhost-user NEON impl
    • Seeing perf differences on different cores; tradeoff is single-threaded perf vs. NEON
  • Kumar built and unit test successfully on D03
  • Nitin to resume patch for supporting different cache line sizes for the same arch
• CSIT
  • Gabriel cleaned up WIP patch; ready for review
  • Kumar starting CSIT func tests with Ubuntu VMs
    • Scripts for running on dedicated hardware need to be modified, e.g. PCIe resources
  • Kumar to send doc on testing
• Performance
  • Kumar to start thread on performance testing
• AIs
  • Brian: Check with Tina on shipping and open LF RT ticket once they have arrived
  • Brian: Need a way to choose either SW or NEON impl based on chip
  • Gabriel: Create list of broken CSIT tests for 2-node topology

12/20/2017

No meeting next week - Dec 27

• FD.io lab
  • OD1000s - build only
    • 1 of 3 needs to be RMAd
    • Can these be up in time to show 'make test' passes on ARM for 18.01 release report?
  • TaiShan
    • PO in progress
  • ThunderX - build only
    • PO went out
• VPP
  • Patches / JIRAs
    • Patch for extended test failure, but still more (new) extended test failures - Gabriel
    • Nitin to post vhost-user.c changes for NEON
      • Nitin will finish Gabriel's original NEON patch to add CLIB_HAVE_VEC_128
  • Can we share code on Github e.g. NEON perf tests?
• CSIT
  • Leading question: How many CSIT test cases are passing/failing?
  • Environment issues preventing running through all CSIT test cases; Gabriel needs dedicated machines or more RAM
  • Cavium & Huawei will join Gabriel in CSIT replication on ARM hardware next week
    • Cavium previously ran vhost test cases manually, now moving to CSIT

12/13/2017

• VPP
  • Quick overview of work items
  • Waiting to hear back from LF about OD1000 connectivity
    • Changes needed to ci-mgmt
• CSIT
  • Starting to reproduce CSIT on x86 and ARM (with Gabriel's WIP patch)
    • Some issues with environment variables (perf tests on 2-node)
  • Need Nexus to support aarch64 packages
    • Need a contact for Nexus
• Share known issues on wiki!
• Request CSIT 'deep dive'

12/06/2017

• Can we access the OD1000 in csit lab ?
  • currently mainly working with VMs
• added dedicated wiki page for CSIT : https://wiki.fd.io/view/CSIT/AArch64
• WIP : https://gerrit.fd.io/r/#/c/9474/

11/29/2017

• VPP
  • vhost-user.c - SSE4.2 only. Implement range search using NEON. (nitin)
  • OD1000 status ?
    • build only
    • can we access them ?
    • what wan we do to help in general ?
  • x86 intrinsic review
  • build VPP on ARM VM on x86
• CSIT
  • what platforms wil lbe made available

11/22/2017

• VPP CI
  • 3 ThunderX for Chrismas
• CSIT
  • func on VM vs perfs on HW
  • func on x86 VMs OK with 2 nodes
  • DPDK integration WIP : https://gerrit.fd.io/r/#/c/9474/
  • issues
    • how to access the lab ?
• Next steps
  • VPP
  • CSIT
    • structure work & send email (Gabriel)
    • is xxhash vs crc32 finished ? (Gabriel)
    • ask Maciek & setup a presentation meeting with someone from CSIT (Tina)
    • find a time to reschedule this meeting before the CSIT weekly call (Brian)

11/15/2017

• VPP upstream status
  • build && build-release OK
  • "make test" && "make test-debug" OK
  • packaging:
    • Ubuntu 16.04 OK
    • Ubuntu 17.10 ? (TBC)
    • fedora-26 OK
• vpp continuous test
  • all task required for jenkin's "verify" job are ready
  • TODO: request gerrit hook to Dave Barachs / vpp-dev (NB & GG)
  • set up ci in fdio lab
• CSIT
  • setting up env
  • ThunderX platforms should arrive this week
  • csit work sharing

11/8/2017

• Unit tests
  • Tests pass except for random initialization failures
  • Need to hear back from upstream about Extended unit tests
• Should we run plugins such as NSH SFC?
• Hardware to lab
  • Huawei h/w stalled
  • 3x ThunderX shipping to FD.io lab
• CSIT replication
  • Cavium replicating on ThunderX2; getting started
• Let's track our work in Jira; Brian to migrate tasks to Jira

10/25/2017

• Gabriel working on vpp init failure in linux_pci_init()
• Kumar to check with GeorgeZ on Huawei boards shipped to CSIT; need to verify tests also on this environment (package versions from distro)
• Brian to check whether anything else needs to be done besides 'make test' for upstream enablement