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path: root/src/vppinfra/time.h
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2020-01-30vppinfra: improve clocks_per_second convergenceDave Barach1-2/+8
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
2019-12-02vppinfra: preserve total_cpu_time across clock freq adjustmentDave Barach1-1/+3
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
2019-11-05session tcp: refactor pacer timeFlorin Coras1-0/+7
Type: refactor Change-Id: Ic1c3e1f7987702cd88972acc34849dc1f585d5fe Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-11-08Calculate clock rounding constantDave Barach1-0/+2
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>
2018-09-03Compile vppinfra on macOSDamjan Marion1-1/+13
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>
2018-07-27mips64: Add timer and longjump supportCarl Smith1-0/+10
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>
2018-05-11Periodic scan and probe of IP neighbors to maintain neighbor poolsJohn Lo1-0/+3
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>
2018-01-30Arm system counter cleanupBrian Brooks1-12/+10
Add some description and cleanup code that uses Arm system counter. Change-Id: Ie1fe00e3e4b5d98867617b7b0184ac526e333c53 Signed-off-by: Brian Brooks <brian.brooks@arm.com>
2017-10-17VPP-1032: fix coverity warningsDave Barach1-4/+6
Change-Id: Ic3a0c51e5408921051deaf2e50372d9654574b27 Signed-off-by: Dave Barach <dave@barachs.net>
2017-06-27FLOWPROBE: Add flowstartns, flowendns and tcpcontrolbitsOle Troan1-0/+14
- fixed problem with tcp_flag - changed flowtimestamp into NTP format Change-Id: I4ef05d6c69c5c078a0c80d59c5ccb0c85b924ba6 Signed-off-by: Ole Troan <ot@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+298
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>