Commit Graph

11 Commits

Author SHA1 Message Date
Dave Barach
c25048bd05 vppinfra: improve clocks_per_second convergence
Apply exponential smoothing to the clock rate update calculation in
clib_time_verify_frequency(), with a half-life of 1 minute and a
sampling frequency of 16 seconds. Within 5 minutes or so, the
calculation converges

With each rate recalculation: reset total_cpu_time based on the kernel
timebase delta since vpp started, and the new clock rate

Improve the "show clock [verbose]" debug CLI command.

BFD echo + echo fail tests marked off until the BFD code can be
reworked a bit.

Type: fix

Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I24e88a78819b12867736c875067b386ef6115c5c
2020-01-30 20:45:18 +00:00
Dave Barach
e52d8d880a vppinfra: preserve total_cpu_time across clock freq adjustment
If clib_time_verify_frequency() adjusts the clock frequency, transform
total_cpu_time to the new time coordinate space. Otherwise, we break
comparisons with previous clib_time_now() value.

Without this correction, time jumps in one direction or the other
depending on the sign of the frequency change. Reasonably harmless in
most cases, but under perfect storm conditions the wheels fall off.

Type: fix

Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I21802c2630e2c87ff817cd732b7d78bc022cd2d7
2019-12-02 23:00:21 +00:00
Florin Coras
a8e71c8981 session tcp: refactor pacer time
Type: refactor

Change-Id: Ic1c3e1f7987702cd88972acc34849dc1f585d5fe
Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-11-05 15:50:37 +00:00
Dave Barach
ba603ba706 Calculate clock rounding constant
Compute the first power of ten which is greater than 0.1% of the clock
rate. Save the result, and use it to round future results. The
previous constant value - 1e7 - didn't work properly on aarch64.

Change-Id: Ic021e3eb1b90c0d4a7d9f1b6425123f0c8b48b0b
Signed-off-by: Dave Barach <dave@barachs.net>
2018-11-08 19:05:52 +00:00
Damjan Marion
4dffd1c998 Compile vppinfra on macOS
Add missing calls to clib_mem_init to vppinfra test codes.

Change-Id: I53ffc6fc287d1a378065bb86c18b6e995ecdb775
Signed-off-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
2018-09-03 16:51:40 +00:00
Carl Smith
28d4271d1a mips64: Add timer and longjump support
Also correct types.h for mips64 which could never be hit
as _mips was part of the previous ifdef.

Change-Id: Id0435c8fc960c5d25c43129b9d9f1606e39ba8e3
Signed-off-by: Carl Smith <carl.smith@alliedtelesis.co.nz>
2018-07-27 12:04:37 +00:00
John Lo
7f358b30b0 Periodic scan and probe of IP neighbors to maintain neighbor pools
Scan IPv4 and IPv6 neigbor pool entries once a minute to keep them
up to date. The neighbor of an entry is probed if its time-stamp
is older than 1 minute. If the neighbor respond, its time-stamp
will be updated. If there is no response from a neighbor, its
entry will be deleted when the time-stamp of the entry become more
than 4 minutes old. Static neighbor entries are not probed nor
deleted.

Implemented CLI and API to enable and disable priodic scan of IPv4,
IPv6 or both types of IP neighbors. CLI is "ip scan-neighbor" and
API is "ip_scan_neighbor_enable_disable". Other IP neighbor scan
parameters can also be changed from their defaults via the CLI/API.

Change-Id: Id1a0a934ace15d03db845aa698bcbb9cdabebfcd
Signed-off-by: John Lo <loj@cisco.com>
2018-05-11 22:35:30 +00:00
Brian Brooks
c0379aec24 Arm system counter cleanup
Add some description and cleanup code that uses Arm system counter.

Change-Id: Ie1fe00e3e4b5d98867617b7b0184ac526e333c53
Signed-off-by: Brian Brooks <brian.brooks@arm.com>
2018-01-30 13:23:31 +00:00
Dave Barach
b9f2cf0bff VPP-1032: fix coverity warnings
Change-Id: Ic3a0c51e5408921051deaf2e50372d9654574b27
Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-17 15:19:22 -04:00
Ole Troan
ed92925f4d FLOWPROBE: Add flowstartns, flowendns and tcpcontrolbits
- fixed problem with tcp_flag
- changed flowtimestamp into NTP format
Change-Id: I4ef05d6c69c5c078a0c80d59c5ccb0c85b924ba6
Signed-off-by: Ole Troan <ot@cisco.com>
2017-06-27 12:01:34 +02:00
Damjan Marion
7cd468a3d7 Reorganize source tree to use single autotools instance
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>
2016-12-28 12:25:14 +01:00