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How to increase CPU frequency ?
I have been using VPS for a long time and I have several of them. Today I tested Dedicated
servers from hetzner
When YABS is turned on I got This result
# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #
# Yet-Another-Bench-Script #
# v2023-11-30 #
# https://github.com/masonr/yet-another-bench-script #
# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #
Sat Dec 23 12:44:49 PM CET 2023
Basic System Information:
---------------------------------
Uptime : 0 days, 0 hours, 2 minutes
Processor : AMD Ryzen 9 3900 12-Core Processor
CPU cores : 24 @ 2200.000 MHz
AES-NI : ✔️ Enabled
VM-x/AMD-V : ✔️ Enabled
RAM : 125.7 GiB
Swap : 4.0 GiB
Disk : 3.4 TiB
Distro : Ubuntu 22.04.3 LTS
Kernel : 5.15.0-89-generic
VM Type : NONE
IPv4/IPv6 : ✔️ Online / ✔️ Online
IPv6 Network Information:
---------------------------------
ISP : Hetzner Online GmbH
ASN : AS24940 Hetzner Online GmbH
Host : Hetzner
Location : Nuremberg, Bavaria (BY)
Country : Germany
fio Disk Speed Tests (Mixed R/W 50/50) (Partition /dev/md2):
---------------------------------
Block Size | 4k (IOPS) | 64k (IOPS)
------ | --- ---- | ---- ----
Read | 747.72 MB/s (186.9k) | 1.73 GB/s (27.1k)
Write | 749.70 MB/s (187.4k) | 1.74 GB/s (27.3k)
Total | 1.49 GB/s (374.3k) | 3.48 GB/s (54.4k)
| |
Block Size | 512k (IOPS) | 1m (IOPS)
------ | --- ---- | ---- ----
Read | 1.73 GB/s (3.3k) | 1.77 GB/s (1.7k)
Write | 1.83 GB/s (3.5k) | 1.89 GB/s (1.8k)
Total | 3.56 GB/s (6.9k) | 3.66 GB/s (3.5k)
iperf3 Network Speed Tests (IPv4):
---------------------------------
Provider | Location (Link) | Send Speed | Recv Speed | Ping
----- | ----- | ---- | ---- | ----
Clouvider | London, UK (10G) | 928 Mbits/sec | 931 Mbits/sec | 19.6 ms
Scaleway | Paris, FR (10G) | 933 Mbits/sec | busy | 21.5 ms
NovoServe | North Holland, NL (40G) | 938 Mbits/sec | 935 Mbits/sec | 10.7 ms
Uztelecom | Tashkent, UZ (10G) | 883 Mbits/sec | 484 Mbits/sec | 95.2 ms
Clouvider | NYC, NY, US (10G) | 871 Mbits/sec | 610 Mbits/sec | 83.7 ms
Clouvider | Dallas, TX, US (10G) | 844 Mbits/sec | 271 Mbits/sec | 121 ms
Clouvider | Los Angeles, CA, US (10G) | 812 Mbits/sec | 384 Mbits/sec | 150 ms
iperf3 Network Speed Tests (IPv6):
---------------------------------
Provider | Location (Link) | Send Speed | Recv Speed | Ping
----- | ----- | ---- | ---- | ----
Clouvider | London, UK (10G) | 918 Mbits/sec | 922 Mbits/sec | 19.6 ms
Scaleway | Paris, FR (10G) | 922 Mbits/sec | 921 Mbits/sec | 15.5 ms
NovoServe | North Holland, NL (40G) | 925 Mbits/sec | 923 Mbits/sec | 10.7 ms
Uztelecom | Tashkent, UZ (10G) | 869 Mbits/sec | 485 Mbits/sec | 95.3 ms
Clouvider | NYC, NY, US (10G) | 866 Mbits/sec | 342 Mbits/sec | 83.8 ms
Clouvider | Dallas, TX, US (10G) | 834 Mbits/sec | 339 Mbits/sec | 120 ms
Clouvider | Los Angeles, CA, US (10G) | 806 Mbits/sec | 368 Mbits/sec | 150 ms
Geekbench 6 Benchmark Test:
---------------------------------
Test | Value
|
Single Core | 1780
Multi Core | 10027
Full Test | https://browser.geekbench.com/v6/cpu/4106163
YABS completed in 12 min 28 sec
This Is CPU info
CPU max MHz: 3100.0000
CPU min MHz: 2200.0000
.........
But when I turn on YABS it shows 2200.0000 MHz
The overall performance was " Multi Core | 10027 "
Technical support told me that the processor's maximum capacity is increased when needed "Thank you to hetzner for the support and wonderful servers "
Why did YABS not use maximum frequency?
Is the performance according to YABS for this server correct, or does it only represent a half of the actual performance of the server?
Is there a way to increase the frequency and is this recommended?
Comments
Looks at YABS source code in github on line 230. Its just return processor information from /proc/cpuinfo which is only show the processor base freq information, not the current processor freq.
I think yabs shows different frequency with different runs and operating systems.
Check your current CPU Governor mode. Set it to Performance.
After set, confirm after reboot if the change persists.
Thank you .. I Set it to Performance
YABS Now
The performance is the same. This means that the server performs maximum performance when needed
@aaxaa Can you please share where to order this exact server from Hetzner ?
Thanks.
It Is "SERVER AUCTION" You get it at an acceptable price
This is the service link
https://www.hetzner.com/sb
The one you did YABS on, is this one right?

As you can see your scores did not improve whatsoever, except now your server runs at full MHz all the time, consuming more power and possibly heating up more. In case of some kinds of loads this may cause it to throttle sooner, and actually reduce performance at prolonged loads. I suggest that you change it back to whatever it was (probably "ondemand").
That's right thank you
I returned it to ondemand
Yes, it's the same. I chose FSN
YABS will not show you the turbo speeds
If you want to check the real clocks, run a CPU stress test (maybe
stress -c 24
or similar) in another session (or you can use screen/tmux/etc) and then runwatch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"
which will give you a live output of the CPU clock speeds of every coreLooking at the average for a Ryzen 9 3900, it seems that your server is performing above average: https://browser.geekbench.com/processors/amd-ryzen-9-3900