Hi I am trying to run powertop on my machine, I think it's really cool tool. But after installation I was not able see any power related information on my macchine. Following is the configuration :- [root@fos1 linux-3.5]# uname -a Linux fos1 3.5.0 #1 SMP Wed Jan 30 17:27:06 PST 2013 x86_64 x86_64 x86_64 GNU/Linux [root@fos1 linux-3.5]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.1 (Santiago) [root@fos1 linux-3.5]# Here is the output produced by the powertop:- [root@fos1 powertop-2.2]# cat op PowerTOP 2.1 Overview Idle stats Frequency stats Device stats Tunables Summary: 67.4 wakeups/second, 0.0 GPU ops/seconds, 0.0 VFS ops/sec and 8.4% CPU use Usage Events/s Category Description 1.2 ms/s 37.8 Interrupt [7] sched(softirq) 81.0 ms/s 0.00 Process ./src/powertop 97.4 µs/s 12.6 Timer tick_sched_timer 93.9 µs/s 3.6 kWork cache_reap 45.7 µs/s 3.6 Interrupt [3] net_rx(softirq) 47.5 µs/s 1.8 Process /usr/sbin/ypbind 15.7 µs/s 1.8 Timer hrtimer_wakeup 87.2 µs/s 0.9 Process [ksoftirqd/9] 63.5 µs/s 0.9 Process sshd: ckulkarni@pts /0 13.4 µs/s 0.9 Process [sync_supers] 5.3 µs/s 0.9 kWork flush_to_ldisc 3.1 µs/s 0.9 kWork edac_pci_workq_function 2.6 µs/s 0.9 kWork _base_fault_reset_work 2.1 µs/s 0.9 kWork neigh_periodic_work 405.9 µs/s 0.00 Interrupt [9] RCU(softirq) 278.3 µs/s 0.00 Interrupt [1] timer(softirq) 79.1 µs/s 0.00 Process [kworker/9:1] 55.1 µs/s 0.00 kWork do_dbs_timer 51.8 µs/s 0.00 Timer rh_timer_func 32.2 µs/s 0.00 Process [kworker/0:1] 27.0 µs/s 0.00 Process [kworker/u:0] 18.6 µs/s 0.00 Process [kworker/7:1] 13.6 µs/s 0.00 kWork vmstat_update 10.1 µs/s 0.00 kWork edac_mc_workq_function 9.9 µs/s 0.00 Process [kworker/2:1] 9.8 µs/s 0.00 Process [kworker/1:1] 8.2 µs/s 0.00 Process [kworker/14:1] 6.6 µs/s 0.00 Process [kworker/u:2] 3.3 µs/s 0.00 Timer sync_supers_timer_fn 3.2 µs/s 0.00 Timer clocksource_watchdog 2.7 µs/s 0.00 Timer br_hello_timer_expired 2.6 µs/s 0.00 Interrupt [101] eth0-TxRx-0 2.0 µs/s 0.00 Interrupt [106] eth0-TxRx-5 1.6 µs/s 0.00 Interrupt [104] eth0-TxRx-3 1.6 µs/s 0.00 Interrupt [108] eth0-TxRx-7 0.7 µs/s 0.00 Timer tcp_write_timer [root@fos1 powertop-2.2]# I observed that first column is absent. As per the readme file I tried to look for kernel configuration but found following variables set in my .config file CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_HPET_TIMER=y CONFIG_CPU_FREQ_GOV_ONDEMAND=m CONFIG_USB_SUSPEND=y CONFIG_SND_AC97_POWER_SAVE=y CONFIG_SND_AC97_POWER_SAVE_DEFAULT=5 CONFIG_TIMER_STATS=y CONFIG_PERF_EVENTS=y CONFIG_PERF_COUNTERS<<<<<<<<<<<<<<<<<not available in my kernel CONFIG_TRACEPOINTS<<<<<<<<<<<<<<< not available in my kernel CONFIG_TRACEPOINTS=y CONFIG_TRACING=y CONFIG_TRACING_SUPPORT=y CONFIG_EVENT_POWER_TRACING_DEPRECATED=y CONFIG_ACPI_PROCFS_POWER=y Can someone help to get powertop running? Regards, Royy