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(parent: 047c254) | patch
doc: add PMD power management errata with RTM and GCC 9
authorDavid Hunt <david.hunt@intel.com>
Wed, 9 Mar 2022 13:22:21 +0000 (13:22 +0000)
committerThomas Monjalon <thomas@monjalon.net>
Wed, 16 Mar 2022 19:42:27 +0000 (20:42 +0100)
commitba7b205a9865a85ceb71b6135a3097826af3286d
tree4753f8ffaba090a557e1fcd0b46ad82af246a862tree | snapshot
parent047c25401d2b4001e7e20200a5ec05868a113290commit | diff
doc: add PMD power management errata with RTM and GCC 9

An errata exists where users may see reduced power savings when using
PMD Power Management. This issue occurs when compiling DPDK applications
with GCC-9 on platforms with TSX enabled. In rte_power_monitor_multi(),
the function may return without successfully starting the RTM
transaction (the _xbegin() fails).

Signed-off-by: David Hunt <david.hunt@intel.com>
doc/guides/rel_notes/release_22_03.rst diff | blob | history
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