Originally posted by mumar1
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AMD Ryzen 9 3900X Power Usage Is Running Measurably Higher On Linux Than Windows
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Originally posted by birdie View Post[*]Multicore CPU performance is quite lower than in Windows
Let me guess, you're comparing 2019 Windows to some LInux distribution release that is >1 year old.
By the way the crappy hardware support you're complaining about is AMD's fault along with motherboard vendors not providing specifications (or better yet, drivers too) to read their sensors.
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Originally posted by bezirg View Post
I think these power-usage graphs must only be interpreted together with the perfomance graphs of 3900x for Linux vs Windows: https://www.phoronix.com/scan.php?pa...0-ubuntu&num=7 . Since AMD 3900x (and any high-core CPU) performs on average better on Linux versus Windows, it just may be the case that windows do not push the CPU to its capabilities, and instead idling/throttling on lower wattages.
I bet your theory is wrong, most probably there's something related to the chipset, pci-e power management, ASPM or whatever (or a mixture of things) which is preventing the system to consume less energy during idle periods
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Originally posted by bezirg View Post
I think these power-usage graphs must only be interpreted together with the perfomance graphs of 3900x for Linux vs Windows: https://www.phoronix.com/scan.php?pa...0-ubuntu&num=7 . Since AMD 3900x (and any high-core CPU) performs on average better on Linux versus Windows, it just may be the case that windows do not push the CPU to its capabilities, and instead idling/throttling on lower wattages.Last edited by Raka555; 30 August 2019, 03:49 PM.
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Originally posted by birdie View PostIt's always the same story with new hardware and Linux. You should avoid buying the former or don't use the latter at least for half a year before all the bugs are ironed out.
Right now I have a Ryzen 3000 system and- I can't get CPU temperature in Linux by default (I manually patched kernel 5.2 to get the k10temp driver working - how many users will do that?)
- lm-sensors doesn't see any sensors on my motherboard (there are two HW monitoring chips: one is detected but doesn't work, the other one is not supported at all)
- CPU temperature is a lot higher than in Linux (I'm talking about idle mode)
- Multicore CPU performance is quite lower than in Windows
I hated the idea of a chipset fan, so I got an ASUS Strix X470-f (https://github.com/electrified/asus-wmi-sensors) for my 3700X:
asuswmisensors-isa-0000
Adapter: ISA adapter
CPU Core Voltage: +0.18 V
+12V Voltage: +12.03 V
+5V Voltage: +4.96 V
3VSB Voltage: +3.31 V
CPU Fan: 960 RPM
Chassis Fan 1: 0 RPM
Chassis Fan 2: 0 RPM
Chassis Fan 3: 0 RPM
AIO Pump: 0 RPM
Water Pump: 0 RPM
CPU OPT: 0 RPM
CPU Temperature: +30.0°C
Motherboard Temperature: +31.0°C
Chipset Temperature: +44.0°C
asus-isa-0000
Adapter: ISA adapter
cpu_fan: 0 RPM
amdgpu-pci-0b00
Adapter: PCI adapter
vddgfx: +0.93 V
fan1: 1 RPM (min = 0 RPM, max = 3500 RPM)
temp1: +35.0°C (crit = +89.0°C, hyst = -273.1°C)
power1: 9.00 W (cap = 240.00 W)
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