Power Management Updates Touch Intel P-State & More For Linux 4.13

[phoronix]

Phoronix: Power Management Updates Touch Intel P-State & More For Linux 4.13

Rafael Wysocki has submitted the ACPI and power management updates for the Linux 4.13 merge window...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-4.13-Power-Management

[Azrael5]

I sincerely hope in power management optimization so to make more and more the machine reliable.

[tildearrow]

Typo:

New hardware suppport like the hi3660 and rk3228 support

[Tomin]

- x86 systems will no longer try to export their current CPU frequency to /proc/cpuinfo.

Oh. So, how should I read it now then? Probably something in sysfs, but "grep MHz /proc/cpuinfo" was pretty simple to me.

[andre30correia]

I sincerely hope in power management optimization so to make more and more the machine reliable.

I use a asus laptop with ubuntu 17.04unity low graphics tlp kernel 4.12 intel pstate(powersave) without turbo i76500u two ssd and 16 gb of ram, monitor FH with a 44/48wh battery and I can work (coding ofice and browser) with a third of brightness and keyboard light at minimum, mouse and wifi, and I have 7 to 9 hours of battery life, and bumblebee, the low battery life is myth and lie in linux ecosystem this days

[czz0]

My USB Broadcom bluetooth dongle is still broken since early 4.12 release candidates, I was hoping the Broadcom/usb updates I saw in the kernel today/yesterday might have fixed it.

[cj.wijtmans]

Oh. So, how should I read it now then? Probably something in sysfs, but "grep MHz /proc/cpuinfo" was pretty simple to me.

it will probably now state the retail mhz instread of current mhz. as how it should be.

[Tomin]

it will probably now state the retail mhz instread of current mhz. as how it should be.

Yes, but I tried to ask how can I read the current frequency now that /proc/cpuinfo doesn't tell it anymore.

[cj.wijtmans]

depends on your distro as there are several tools to do that.. just google it?

[Tomin]

depends on your distro as there are several tools to do that.. just google it?

cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq

Not very easy to remember and requires root user. I can always alias this, but it would still require sudo. lscpu command seems to be able to see this without elevating privileges, so there should be a way to do it without root.