!スティックPC DOSパラのスティックPC DG-STK3に Ubuntu(Lubuntu) 15.10をインストールして簡単な性能評価． ペリフェラルは * キーボード SKB-SL04U * GW-USValue-Ez ::スペック CPU model name : Intel(R) Atom(TM) CPU Z3735F @ 1.33GHz cache size : 1024 KB メモリ MemTotal: 1984700 kB ::UnixBench ちなみに消費電力をCHARGER Doctorで測定してみたところ およそ 5.11V，0.4A といったところ． 動作中の/sys/devices/system/cpu/cpu?/cpuinfo_cur_freqをみてみると 1.83GHz程度まで動作周波数はブーストされるようだ． * 1CPUのスコア Dhrystone 2 using register variables 116700.0 9170188.3 785.8 Double-Precision Whetstone 55.0 1523.0 276.9 Execl Throughput 43.0 386.6 89.9 File Copy 1024 bufsize 2000 maxblocks 3960.0 292651.0 739.0 File Copy 256 bufsize 500 maxblocks 1655.0 80626.1 487.2 File Copy 4096 bufsize 8000 maxblocks 5800.0 764097.7 1317.4 Pipe Throughput 12440.0 667144.9 536.3 Pipe-based Context Switching 4000.0 45081.8 112.7 Process Creation 126.0 2442.8 193.9 Shell Scripts (1 concurrent) 42.4 1966.6 463.8 Shell Scripts (8 concurrent) 6.0 976.3 1627.1 System Call Overhead 15000.0 1356916.2 904.6 ======== System Benchmarks Index Score 452.8 * 4CPU 4パラのスコア System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 31704217.1 2716.7 Double-Precision Whetstone 55.0 5259.2 956.2 Execl Throughput 43.0 4491.1 1044.5 File Copy 1024 bufsize 2000 maxblocks 3960.0 351134.8 886.7 File Copy 256 bufsize 500 maxblocks 1655.0 98187.6 593.3 File Copy 4096 bufsize 8000 maxblocks 5800.0 943438.8 1626.6 Pipe Throughput 12440.0 2307278.9 1854.7 Pipe-based Context Switching 4000.0 232072.0 580.2 Process Creation 126.0 9268.7 735.6 Shell Scripts (1 concurrent) 42.4 8161.8 1924.9 Shell Scripts (8 concurrent) 6.0 1130.9 1884.9 System Call Overhead 15000.0 3401815.2 2267.9 ======== System Benchmarks Index Score 1254.0 ::Stream サイズ大き目にコンパイル gcc -O -mcmodel=large -DSTREAM_ARRAY_SIZE=50000000 stream.c -o stream.50M.omp gcc -O -fopenmp -mcmodel=large -DSTREAM_ARRAY_SIZE=50000000 stream.c -o stream.50M.omp こうすると Array size = 500000000 (elements), Offset = 0 (elements) Memory per array = 381.5 MiB (= 0.4 GiB). 結果は， CHARGER Doctorをみていると5.15v, 0.6-0.7A程度． ***---------------------------------------------------------- Function Best Rate MB/s Avg time Min time Max time Copy: 4626.3 0.173088 0.172924 0.173731 Scale: 4201.0 0.190740 0.190433 0.191493 Add: 4940.6 0.243161 0.242886 0.243526 Triad: 4272.0 0.281131 0.280902 0.281788 ***---------------------------------------------------------- OpenMPでもやってみた． * OMP_NUM_THREAD=1 ------------------------------------------------------------- Function Best Rate MB/s Avg time Min time Max time Copy: 4628.0 0.173025 0.172860 0.173542 Scale: 4196.8 0.190844 0.190620 0.191282 Add: 4913.7 0.244317 0.244217 0.244396 Triad: 4264.5 0.281699 0.281390 0.282705 ------------------------------------------------------------- * OMP_NUM_THREAD=2 ------------------------------------------------------------- Function Best Rate MB/s Avg time Min time Max time Copy: 4695.6 0.170626 0.170373 0.171155 Scale: 4638.9 0.172611 0.172454 0.172765 Add: 5524.5 0.217634 0.217215 0.218297 Triad: 5573.2 0.215780 0.215316 0.216255 ------------------------------------------------------------- * OMP_NUM_THREAD=4 ------------------------------------------------------------- Function Best Rate MB/s Avg time Min time Max time Copy: 4385.3 0.182835 0.182429 0.183289 Scale: 4326.7 0.185081 0.184900 0.185355 Add: 5106.2 0.235379 0.235009 0.235670 Triad: 5103.0 0.235516 0.235154 0.235855 ------------------------------------------------------------- ::Octane 2.0 Firefox 43.0.4 Richards 1769 Deltablue 4661 Crypt 7231 Raytrace 12002 EarleyBoyer 8605 Regexp 798 Splay 3639 SplyaLtency 4054 NavierStokes 13585 pdf.js 2120 Mandreel 5116 MandreelLatency 5204 GB Emulator 13589 CodeLoad 3650 B0x2DWeb 5355 zlib 23039 Typescript 6016