Difference between revisions of "User:FlyingBlackbird"
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* Surprisingly quiet during idle and normal use (low CPU usage) | * Surprisingly quiet during idle and normal use (low CPU usage) | ||
* Fans spinning fast but not too loud during 100 % CPU load (slow RPM increase and decrease, no annoying sudden changes) | * Fans spinning fast but not too loud during 100 % CPU load (slow RPM increase and decrease, no annoying sudden changes) | ||
| + | |||
| + | '''Boot-up durations''' | ||
| + | |||
| + | * '''Cold boot''' (powered off) | ||
| + | ** Switching on the power supply switch: Time until the case power switch reacts to start ''Hostboot'': 2 minutes | ||
| + | ** After cold boot: Time until ''Petitboot'' boot menu appears: 2 minutes | ||
| + | ** Booting Ubuntu 19.10 Server on a NVMe SSD: Time from ''Petitboot'' boot menu to Ubuntu lightdm login screen: 34 s | ||
| + | * '''Soft boot''' (powered on but switched off via the case power switch) | ||
| + | ** Time until the ''Petitboot'' boot menu appears: about 100 seconds | ||
| + | * '''Reboot''' from Ubuntu until ''Petitboot'' boot menu appears: about 4 - 10 seconds (after Ubuntu has shut down) | ||
| + | |||
| + | Summary: | ||
| + | * A cold start takes quite long compared x86_64 architecture (about 4,5 minutes until the Ubuntu login screen appears) | ||
| + | * A warm start does also take longer compared x86_64 architecture (about 2 minutes until the Ubuntu login screen appears) | ||
| + | |||
= Software = | = Software = | ||
Revision as of 04:01, 26 January 2020
Usage
I am using a Blackbird Desktop System with an IBM Power9 v2 (= stepping DD2.3) 8-core CPU as testing infrastructure for open source projects (since Jan, 2020).
Instable hardware watchpoints in stepping DD2.2 (erratum #1: DAWR [Data Access Watchpoint Register] feature is disabled on DD2.2) was the main reason for me to wait for DD2.3 to have reliable low-level debugging available.
System configuration
| Component | Brand | Model | Costs in EUR |
|---|---|---|---|
| Mainboard | Raptor | Blackbird Rev. 1.01 | |
| CPU | IBM | 8-Core POWER9v2 with 3U HSF | |
| Desktop Case | Fractal Design | Define R6 USB-C | 140 |
| Power Supply | be quiet! | Straight Power 11 (650 W) | 120 |
| RAM | Samsung (OEM by phs memory) | 2 x M393A4K40CB2-CTD7Q 32 GB DDR 4 RDIMM | 344 |
| Video Card | Aspeed | AST 2500 onboard VGA | 0 |
| Optical Drive | Asus | BW-16D1HT Retail (Blu Ray Writer) | 75 |
| HDD | Seagate | IronWolf Pro 8 TB (ST8000NE0004) SATA III | 300 |
| Operating System | Ubuntu | Server 19.10 | 0 |
| Total | |||
Measures
Power Consumption:
- 2.2 W plugged in
- 68 W Idle
- 186 W with 100 % CPU load (testet with stress --cpu 32 -t 180s)
Temperatures:
- CPU idle: 45 degree Celsius
- CPU 100 % load: 72 degree Celsius
- DIMM 0 (32 GB ECC RAM): 44 Degree Celsius
- DIMM 1 (32 GB ECC RAM): 49 degree Celsius
Noise Level:
- Surprisingly quiet during idle and normal use (low CPU usage)
- Fans spinning fast but not too loud during 100 % CPU load (slow RPM increase and decrease, no annoying sudden changes)
Boot-up durations
- Cold boot (powered off)
- Switching on the power supply switch: Time until the case power switch reacts to start Hostboot: 2 minutes
- After cold boot: Time until Petitboot boot menu appears: 2 minutes
- Booting Ubuntu 19.10 Server on a NVMe SSD: Time from Petitboot boot menu to Ubuntu lightdm login screen: 34 s
- Soft boot (powered on but switched off via the case power switch)
- Time until the Petitboot boot menu appears: about 100 seconds
- Reboot from Ubuntu until Petitboot boot menu appears: about 4 - 10 seconds (after Ubuntu has shut down)
Summary:
- A cold start takes quite long compared x86_64 architecture (about 4,5 minutes until the Ubuntu login screen appears)
- A warm start does also take longer compared x86_64 architecture (about 2 minutes until the Ubuntu login screen appears)
Software
Ubuntu Server 19.10
- Gnome installed via
taskselcommand:- choose "Ubuntu desktop" to install Gnome
