腾讯云 计算型C2 | C2.LARGE8 使用体验
实例信息
- CPU：4核
- 内存：8GB
- 公网带宽：200Mbps
使用体验
计算型实例C2的CPU分数4540相比普通S2实例的836确实有提高，平摊下来算单核分数也有1135，比S3的单核947还是要高一点。内存来说就优点意思了，2827.72 MiB/sec的速度甚至都没有S3的3779.17 MiB/sec来的高，看来内存还给反向优化了。IO看起来同S3标准实例差不多，都在100 MiB/s左右。总的来说，并不是一款值得选择的型号。
基准测试
speedtest
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Hosted by China unicom Jinan branch (Jinan) [361.92 km]: 24.785 ms Testing download speed................................................................................ Download: 209.42 Mbit/s |
sysbench
–test=cpu –threads=10
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sysbench 1.0.20 (using bundled LuaJIT 2.1.0-beta2) Running the test with following options: Number of threads: 10 Initializing random number generator from current time Prime numbers limit: 10000 Initializing worker threads... Threads started! CPU speed: events per second: 4540.30 General statistics: total time: 10.0019s total number of events: 45418 Latency (ms): min: 0.78 avg: 2.20 max: 44.87 95th percentile: 12.98 sum: 99717.11 Threads fairness: events (avg/stddev): 4541.8000/245.58 execution time (avg/stddev): 9.9717/0.02 |
–test=memory –threads=10
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sysbench 1.0.20 (using bundled LuaJIT 2.1.0-beta2) Running the test with following options: Number of threads: 10 Initializing random number generator from current time Running memory speed test with the following options: block size: 1KiB total size: 102400MiB operation: write scope: global Initializing worker threads... Threads started! Total operations: 28960610 (2895580.53 per second) 28281.85 MiB transferred (2827.72 MiB/sec) General statistics: total time: 10.0002s total number of events: 28960610 Latency (ms): min: 0.00 avg: 0.00 max: 36.01 95th percentile: 0.00 sum: 44246.94 Threads fairness: events (avg/stddev): 2896061.0000/185102.77 execution time (avg/stddev): 4.4247/0.22 |
–test=fileio –threads=10 –file-test-mode=seqwr
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sysbench 1.0.20 (using bundled LuaJIT 2.1.0-beta2) Running the test with following options: Number of threads: 10 Initializing random number generator from current time Extra file open flags: (none) 128 files, 16MiB each 2GiB total file size Block size 16KiB Periodic FSYNC enabled, calling fsync() each 100 requests. Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing sequential write (creation) test Initializing worker threads... Threads started! File operations: reads/s: 0.00 writes/s: 6398.19 fsyncs/s: 8311.48 Throughput: read, MiB/s: 0.00 written, MiB/s: 99.97 General statistics: total time: 10.0483s total number of events: 146548 Latency (ms): min: 0.00 avg: 0.68 max: 60.81 95th percentile: 2.43 sum: 99839.54 Threads fairness: events (avg/stddev): 14654.8000/323.87 execution time (avg/stddev): 9.9840/0.00 |
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