从github上翻到对jsp、thymeleaf 3、velocity 1.7、freemarker 2.3.23几款主流模板的性能对比，总体上看，freemarker、velocity、jsp在性能上差别不大，而thymeleaf与前三者相比，在性能上存在较大的差距，因此，选择thymeleaf作为模板引擎需要慎重。
参考：
system configuration
architecture: x86_64 cpu op-mode(s): 32-bit, 64-bit byte order: little endian cpu(s): 4 on-line cpu(s) list: 0-3 thread(s) per core: 2 core(s) per socket: 2 socket(s): 1 numa node(s): 1 vendor id: genuineintel cpu family: 6 model: 37 model name: intel(r) core(tm) i5 cpu m 430 @ 2.27ghz stepping: 2 cpu mhz: 1199.000 cpu max mhz: 2267.0000 cpu min mhz: 1199.0000 bogomips: 4522.04 virtualization: vt-x l1d cache: 32k l1i cache: 32k l2 cache: 256k l3 cache: 3072k numa node0 cpu(s): 0-3
jsp
document path: /jsp document length: 8515 bytes concurrency level: 25 time taken for tests: 13.003 seconds complete requests: 25000 failed requests: 0 keep-alive requests: 0 total transferred: 218825000 bytes html transferred: 212875000 bytes requests per second: 1922.59 (#/sec) (mean) time per request: 13.003 (ms) (mean) time per request: 0.520 (ms) (mean, across all concurrent requests) transfer rate: 16434.05 (kbytes/sec) received
thymeleaf 3
document path: /thymeleaf document length: 8849 bytes concurrency level: 25 time taken for tests: 23.303 seconds complete requests: 25000 failed requests: 0 keep-alive requests: 0 total transferred: 225300000 bytes html transferred: 221225000 bytes requests per second: 1072.80 (#/sec) (mean) time per request: 23.303 (ms) (mean) time per request: 0.932 (ms) (mean, across all concurrent requests) transfer rate: 9441.52 (kbytes/sec) received
velocity 1.7
document path: /velocity document length: 8951 bytes concurrency level: 25 time taken for tests: 13.200 seconds complete requests: 25000 failed requests: 0 keep-alive requests: 0 total transferred: 227975000 bytes html transferred: 223775000 bytes requests per second: 1893.92 (#/sec) (mean) time per request: 13.200 (ms) (mean) time per request: 0.528 (ms) (mean, across all concurrent requests) transfer rate: 16865.88 (kbytes/sec) received
freemarker 2.3.23
document path: /freemarker document length: 9035 bytes concurrency level: 25 time taken for tests: 12.988 seconds complete requests: 25000 failed requests: 0 keep-alive requests: 0 total transferred: 230075000 bytes html transferred: 225875000 bytes requests per second: 1924.83 (#/sec) (mean) time per request: 12.988 (ms) (mean) time per request: 0.520 (ms) (mean, across all concurrent requests) transfer rate: 17299.01 (kbytes/sec) received
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