![]() On FreeBSD I have noticed that subsuquent calls to clock_gettime(..) can return an after time that is before first calls value. This in turn is generating CPU_HOG's because the subtraction is wrapping into very very large numbers: 2022/02/28 20:12:58 SHARP: [PTDQA-70FG5] start: 35.741981000 now: 35.740581000 2022/02/28 20:12:58 SHARP: [XK9YH-ZD8FA][EC 100663313] CPU HOG: task zclient_read (800744240) ran for 0ms (cpu time 18446744073709550ms) (Please note I added the first line of debug to figure this issue out). I have been asked to open a FreeBSD bug report and have done so. In the mean time I think that it is important that FRR does not generate bogus CPU HOG's on FreeBSD ( especially since this may or may not be easily fixed and FRR has no control over what version of the operating system, operators are going to be running with FRR. So, add a bit of specialized code that checks to see if the after time in FreeBSD is before the now time in thread_consumed_time and do some quick manipulations to not have this issue. Signed-off-by: Donald Sharp <sharpd@nvidia.com> |
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version.h |
FRRouting
FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.
FRR currently supports the following protocols:
- BGP
- OSPFv2
- OSPFv3
- RIPv1
- RIPv2
- RIPng
- IS-IS
- PIM-SM/MSDP
- LDP
- BFD
- Babel
- PBR
- OpenFabric
- VRRP
- EIGRP (alpha)
- NHRP (alpha)
Installation & Use
For source tarballs, see the releases page.
For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.
Instructions on building and installing from source for supported platforms may be found in the developer docs.
Once installed, please refer to the user guide for instructions on use.
Community
The FRRouting email list server is located here and offers the following public lists:
Topic | List |
---|---|
Development | dev@lists.frrouting.org |
Users & Operators | frog@lists.frrouting.org |
Announcements | announce@lists.frrouting.org |
For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.
Contributing
FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.
We welcome and appreciate all contributions, no matter how small!
Security
To report security issues, please use our security mailing list:
security [at] lists.frrouting.org