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NTB Perf: Tool to measure performance of NTB hw drivers
Needs ReviewPublic

Authored by on Jan 13 2019, 10:19 AM.


Group Reviewers
Core Team

NTB Perf is a performance measuring tool for NTB hardware drivers.

This is a port of ntb_perf Linux tool for FreeBSD. It has been tested with AMD NTB hardware driver.

Test Plan

A guide to test is included in ntb_perf.c comments.

Diff Detail

rS FreeBSD src repository
Lint Skipped
Unit Tests Skipped

Event Timeline

Added write combining for memory window for improved performance
Remove submit_test_callout with an alternate method to check test completion
Add sysctl node under debug tree for NTB Perf

@mav : Reminder to please review this change when you get a chance. Thanks.

@mav, @cem, @imp : Please review this change and provide feedback. Thanks.

@mav @cem @imp : Can anyone please review this change. Thanks.

cem added a subscriber: emaste.Apr 25 2019, 3:11 PM

I'm afraid I don't have time to review this, sorry. CCing Ed, who might be able to round someone up.

@emaste: Reminder to find a reviewer for this change please. Thanks.

Can you provide a link to the original source file, and make a second review (or link to a diff) that shows the delta between upstream and your ported version?

@emaste : Here's a link to the linux ntb_perf tool which I've used for porting: ntb_perf
Did you mean a delta between linux upstream and my ported version? If yes, find it here D20697
If this is not what you requested, please let me know.

@emaste : Reminder to review/find a reviewer for this change, please.