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lib
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python3.9
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site-packages
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tuned
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plugins
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View File Name :
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): """ A plug-in for avoiding inter-processor interrupts caused by enabling or disabling static keys. The plug-in has no options; when included, **TuneD** will keep an open socket with timestamping enabled, thus keeping the static key 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()