目前的主流服务器都拥有较多的CPU,2 NUMA node情况下,打开HyperThread,CPU数量通常都在40、64、96、128、192、256左右。 作者经常进行性能分析工作,经常需要分析中断的情况。常用命令 watch -d -n 1 "cat /proc/interrupts " 进行观察各个中断的增量情况,但是在CPU数量较多,且网卡多对列打开的情况下,数据显示简...
/* Statistics */ .get_sset_count = tja11xx_get_sset_count, .get_strings = tja11xx_get_strings, .get_stats = tja11xx_get_stats, } }; module_phy_driver(tja11xx_driver); genphy_driver 的 struct phy_driver 的注册过程如下: phy_init phy_driver_register driver_register(&new_driver->...
# ethtool -S ens2 NIC statistics: rx_packets: 137882815105 tx_packets: 274937740003 rx_bytes: 84537446775570 tx_bytes: 401450641546052 rx_errors: 2022092 tx_errors: 0 rx_dropped: 229385 tx_dropped: 0 collisions: 0 rx_length_errors: 0 rx_crc_errors: 0 rx_unicast: 137882060073 tx_unicast: ...
Parsing /proc/stat is needed to get load statistics for processors. For each unbanned CPU, the time (in nanosecs) spent in handling irqs and softirqs is obtained and that CPU’s topo_obj.load and topo_obj.last_load are populated. topo_obj.load is the load at the end of this scan ...
ethtool -i enp3s0f0 driver: ice version: 1.14.11 firmware-version: 4.50 0x8001d8b6 1.3597.0 expansion-rom-version: bus-info: 0000:03:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: yes ...
The total for all CPUs is given at the top, while each individual CPU is listed below with its own statistics. The following example is a 4-way Intel Pentium Xeon configuration with multi-threading enabled, therefore showing four physical processors and four virtual processors totaling eight ...
genirq: Provide a snapshot mechanism for interrupt statistics 11 months ago Makefile genirq: Add mechanism to multiplex a single HW IPI 2 years ago affinity.c genirq/affinity: Move group_cpus_evenly() into lib/ 2 years ago autoprobe.c genirq: Delay deactivation in free_irq() ...
"IRQ statistics not available for %s.\n", object_get_typename(obj)); } } return0; } HumanReadableText*qmp_x_query_irq(Error**errp) { g_autoptr(GString)buf=g_string_new(""); object_child_foreach_recursive(object_get_root(), ...
statistics","action":"perf-stats","cpu":"0","mem":"7","totalsession":"10","disk":"1","bandwidth":"12/2","setuprate":"0","disklograte":"0","fazlograte":"0","freediskstorage":"28521","sysuptime":"7221","waninfo":"N/A","msg":"Performance statistics: average CPU: 0,...
and makes these statistics available to userspace through the taskstats interface. @@ -49,7 +50,7 @@ this structure. See for a description of the fields pertaining to delay accounting. It will generally be in the form of counters returning the cumulative delay seen for cpu, sync block I/...