56e62d88c5
The `struct route_entry` had items that were almost never used at
the front of the data structure resulting in items that would be
loaded first into memory that were never used. Let's reorg a
tiny bit and put all the frequently used items in the first cache
line. I'm sure people will notice .000000001 speedup
new layout:
sharpd@eva /w/h/s/frr1 (reorg_route_entry)> /home/sharpd/pahole/build/pahole --reorganize --show_reorg_steps -C route_entry zebra/.libs/zebra
struct route_entry {
struct re_list_item next; /* 0 8 */
struct nhg_hash_entry * nhe; /* 8 8 */
uint32_t nhe_id; /* 16 4 */
uint32_t nhe_installed_id; /* 20 4 */
int type; /* 24 4 */
vrf_id_t vrf_id; /* 28 4 */
uint32_t table; /* 32 4 */
uint32_t metric; /* 36 4 */
uint32_t mtu; /* 40 4 */
uint32_t nexthop_mtu; /* 44 4 */
uint32_t flags; /* 48 4 */
uint32_t status; /* 52 4 */
uint32_t dplane_sequence; /* 56 4 */
uint16_t instance; /* 60 2 */
uint8_t distance; /* 62 1 */
/* XXX 1 byte hole, try to pack */
/* --- cacheline 1 boundary (64 bytes) --- */
route_tag_t tag; /* 64 4 */
/* XXX 4 bytes hole, try to pack */
time_t uptime; /* 72 8 */
struct re_opaque * opaque; /* 80 8 */
struct nexthop_group fib_ng; /* 88 32 */
struct nexthop_group fib_backup_ng; /* 120 32 */
/* size: 152, cachelines: 3, members: 20 */
/* sum members: 147, holes: 2, sum holes: 5 */
/* last cacheline: 24 bytes */
};
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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| .github | ||
| alpine | ||
| babeld | ||
| bfdd | ||
| bgpd | ||
| debian | ||
| doc | ||
| docker | ||
| eigrpd | ||
| fpm | ||
| gdb | ||
| grpc | ||
| include | ||
| isisd | ||
| ldpd | ||
| lib | ||
| m4 | ||
| mgmtd | ||
| mlag | ||
| nhrpd | ||
| ospf6d | ||
| ospfclient | ||
| ospfd | ||
| pathd | ||
| pbrd | ||
| pceplib | ||
| pimd | ||
| pkgsrc | ||
| python | ||
| qpb | ||
| redhat | ||
| ripd | ||
| ripngd | ||
| sharpd | ||
| snapcraft | ||
| staticd | ||
| tests | ||
| tools | ||
| vrrpd | ||
| vtysh | ||
| watchfrr | ||
| yang | ||
| zebra | ||
| .clang-format | ||
| .dockerignore | ||
| .flake8 | ||
| .git-blame-ignore-revs | ||
| .gitignore | ||
| .isort.cfg | ||
| .pylintrc | ||
| .travis.yml | ||
| bootstrap.sh | ||
| buildtest.sh | ||
| config.version.in | ||
| configure.ac | ||
| COPYING | ||
| Makefile.am | ||
| README.md | ||
| stamp-h.in | ||
| 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