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files >> //proc/thread-self/root/proc/self/root/lib/python3.6/site-packages/tuned/plugins/plugin_rtentsk.py
from . import base from .decorators import * import tuned.logs from tuned.utils.commands import commands import glob import socket import time log = tuned.logs.get() class RTENTSKPlugin(base.Plugin): """ `rtentsk`:: Plugin for avoiding interruptions due to static key IPIs due to opening socket with timestamping enabled (by opening a socket ourselves the static key is kept enabled). """ def _instance_init(self, instance): instance._has_static_tuning = True instance._has_dynamic_tuning = False # SO_TIMESTAMP nor SOF_TIMESTAMPING_OPT_TX_SWHW is defined by # the socket class SO_TIMESTAMP = 29 # see include/uapi/asm-generic/socket.h #define SO_TIMESTAMP 0x4012 # parisc! SOF_TIMESTAMPING_OPT_TX_SWHW = (1<<14) # see include/uapi/linux/net_tstamp.h s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP) s.setsockopt(socket.SOL_SOCKET, SO_TIMESTAMP, SOF_TIMESTAMPING_OPT_TX_SWHW) self.rtentsk_socket = s log.info("opened SOF_TIMESTAMPING_OPT_TX_SWHW socket") def _instance_cleanup(self, instance): s = self.rtentsk_socket s.close()
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