- 追加された行はこのように表示されます。
- 削除された行は
このように表示されます。
!Xubuntu16.04 on X280
X280にインストールしていた Ubuntu 18.04 (MATE) を消して，
Xubuntu 16.04をインストール．
手元の環境がxfce4なのは久しぶり．
いい感じのショートカットキー設定ができて，いい感じ．
インストールメモ
* 日本語入力はfcitx-mozc．IMEのオン/オフはAlt+`に．
* メニュー表示は，xfce4-popup-whiskermenuという命令．SuperLに割当て．
* remminaはaptでそのまま入れるとゲートウェイ対応してないので最新版を
sudo add-apt-repository ppa:remmina-ppa-team/remmina-next
* chrome，mono，skype，slack，dropbxo，Java8なんかはsource.list.dを追加してインストール．
* lid closeがsuspendじゃなくてswitch off displayだったのでsuspendに．
!ベンチマーク @ X280
UnixBenchのスコアはこんな感じ
8 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 39946881.0 lps (10.0 s, 7 samples)
Double-Precision Whetstone 4493.7 MWIPS (10.6 s, 7 samples)
Execl Throughput 5503.5 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 844907.9 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 223349.0 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 2060677.8 KBps (30.0 s, 2 samples)
Pipe Throughput 1222150.6 lps (10.0 s, 7 samples)
Pipe-based Context Switching 185569.7 lps (10.0 s, 7 samples)
Process Creation 6090.7 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 7090.2 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 4580.0 lpm (60.0 s, 2 samples)
System Call Overhead 1097868.2 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 39946881.0 3423.0
Double-Precision Whetstone 55.0 4493.7 817.0
Execl Throughput 43.0 5503.5 1279.9
File Copy 1024 bufsize 2000 maxblocks 3960.0 844907.9 2133.6
File Copy 256 bufsize 500 maxblocks 1655.0 223349.0 1349.5
File Copy 4096 bufsize 8000 maxblocks 5800.0 2060677.8 3552.9
Pipe Throughput 12440.0 1222150.6 982.4
Pipe-based Context Switching 4000.0 185569.7 463.9
Process Creation 126.0 6090.7 483.4
Shell Scripts (1 concurrent) 42.4 7090.2 1672.2
Shell Scripts (8 concurrent) 6.0 4580.0 7633.3
System Call Overhead 15000.0 1097868.2 731.9
========
System Benchmarks Index Score 1433.6
8 CPUs in system; running 8 parallel copies of tests
Dhrystone 2 using register variables 177289927.0 lps (10.0 s, 7 samples)
Double-Precision Whetstone 31826.5 MWIPS (10.4 s, 7 samples)
Execl Throughput 24997.1 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 1226510.2 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 326047.6 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 3476184.5 KBps (30.0 s, 2 samples)
Pipe Throughput 6282132.1 lps (10.0 s, 7 samples)
Pipe-based Context Switching 1192209.1 lps (10.0 s, 7 samples)
Process Creation 57491.3 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 41442.0 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 5980.6 lpm (60.0 s, 2 samples)
System Call Overhead 6587319.4 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 177289927.0 15191.9
Double-Precision Whetstone 55.0 31826.5 5786.6
Execl Throughput 43.0 24997.1 5813.3
File Copy 1024 bufsize 2000 maxblocks 3960.0 1226510.2 3097.2
File Copy 256 bufsize 500 maxblocks 1655.0 326047.6 1970.1
File Copy 4096 bufsize 8000 maxblocks 5800.0 3476184.5 5993.4
Pipe Throughput 12440.0 6282132.1 5049.9
Pipe-based Context Switching 4000.0 1192209.1 2980.5
Process Creation 126.0 57491.3 4562.8
Shell Scripts (1 concurrent) 42.4 41442.0 9774.1
Shell Scripts (8 concurrent) 6.0 5980.6 9967.6
System Call Overhead 15000.0 6587319.4 4391.5
========
System Benchmarks Index Score 5349.4
Streamだと，
-------------------------------------------------------------
STREAM version $Revision: 5.10 $
-------------------------------------------------------------
This system uses 8 bytes per array element.
-------------------------------------------------------------
Array size = 100000000 (elements), Offset = 0 (elements)
Memory per array = 762.9 MiB (= 0.7 GiB).
Total memory required = 2288.8 MiB (= 2.2 GiB).
Each kernel will be executed 10 times.
The *best* time for each kernel (excluding the first iteration)
will be used to compute the reported bandwidth.
-------------------------------------------------------------
Number of Threads requested = 1
Number of Threads counted = 1
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 152873 microseconds.
(= 152873 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function Best Rate MB/s Avg time Min time Max time
Copy: 17051.9 0.096238 0.093831 0.097821
Scale: 8219.6 0.196395 0.194658 0.197572
Add: 15433.3 0.155877 0.155508 0.156706
Triad: 8035.4 0.299172 0.298680 0.299649
-------------------------------------------------------------
Solution Validates: avg error less than 1.000000e-13 on all three arrays
-------------------------------------------------------------
-------------------------------------------------------------
STREAM version $Revision: 5.10 $
-------------------------------------------------------------
This system uses 8 bytes per array element.
-------------------------------------------------------------
Array size = 100000000 (elements), Offset = 0 (elements)
Memory per array = 762.9 MiB (= 0.7 GiB).
Total memory required = 2288.8 MiB (= 2.2 GiB).
Each kernel will be executed 10 times.
The *best* time for each kernel (excluding the first iteration)
will be used to compute the reported bandwidth.
-------------------------------------------------------------
Number of Threads requested = 8
Number of Threads counted = 8
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 69503 microseconds.
(= 69503 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function Best Rate MB/s Avg time Min time Max time
Copy: 16496.2 0.100418 0.096992 0.111332
Scale: 17602.3 0.094634 0.090897 0.109692
Add: 19501.1 0.123799 0.123070 0.126484
Triad: 19758.4 0.123108 0.121467 0.124134
-------------------------------------------------------------
Solution Validates: avg error less than 1.000000e-13 on all three arrays
-------------------------------------------------------------
ちなみにマシンスペックは，
* Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz
* メモリ: 16GB(8GBx2)，DDR4, 2400 MHz
って感じ．
!e社
新しい仕事にとりかかる前に，自分の周囲のスペースの整理整頓を．