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authorDave Barach <dave@barachs.net>2019-12-01 08:59:03 -0500
committerFlorin Coras <florin.coras@gmail.com>2019-12-02 23:00:21 +0000
commite52d8d880ac644f07154bc2fb94035a198ed6688 (patch)
treeffbc53cdc8859504d32a6066b033394936332772 /doxygen
parent5ef9ca6c0de25993bde0dbc354cc4a5bc83ab0eb (diff)
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
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