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6月25号php 8 alpha 1发布，7月9号 php 8 alpha 2发布，一般alpha 2是一个稍微能用的版本，所以周末测评了一下php8 JIT到底是个什么？
先看一下结果：
JIT不开启的情况下
php -d opcache.jit_buffer_size=0 Zend/bench.phpsimple 0.025simplecall 0.012simpleucall 0.012simpleudcall 0.012mandel 0.135mandel2 0.211ackermann(7) 0.082ary(50000) 0.012ary2(50000) 0.010ary3(2000) 0.186fibo(30) 0.283hash1(50000) 0.039hash2(500) 0.041heapsort(20000) 0.089matrix(20) 0.110nestedloop(12) 0.096sieve(30) 0.045strcat(200000) 0.019------------------------Total 1.419登录后复制
JIT开启的情况下：
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.155登录后复制
还有不打开Opcache的情况下：
php Zend/bench.phpsimple 0.051simplecall 0.017simpleucall 0.083simpleudcall 0.089mandel 0.506mandel2 0.409ackermann(7) 0.095ary(50000) 0.012ary2(50000) 0.010ary3(2000) 0.187fibo(30) 0.367hash1(50000) 0.040hash2(500) 0.041heapsort(20000) 0.097matrix(20) 0.122nestedloop(12) 0.093sieve(30) 0.063strcat(200000) 0.018------------------------Total 2.299登录后复制
不开启Opcache : 2.299s开启Opcache不开启JIT情况下：1.419s开启Opcache且开启JIT情况下：0.155s
开启JIT情况下是不开启JIT情况下的接近9.15倍，多次测试这个值稳定在8倍到10倍之间。
MPF表现如何？为了接近我们的业务，所以在mpf框架下进行测试
环境aliyun centos 6.9
php7.test.com php-fpm一个进程php8.test.com php-fpm一个进程
Mpf两个接口
/v1/hello/wzh/index1
public function index1() { $this->output('123');}登录后复制/v1/hello/wzh/index2
public function index2() { $a = 0; for ($i = 0; $i < 1000000; $i++) $a++; $this->output($a);}登录后复制我们压测一下
php7 计算少情况
wrk -c36 -d 5s -t12 https://php7.test.com/v1/hello/wzh/index1Running 5s test @ https://php7.test.com/v1/hello/wzh/index1 12 threads and 36 connections Thread Stats Avg Stdev Max +/- Stdev Latency 432.97ms 76.00ms 527.38ms 92.17% Req/Sec 8.38 5.36 20.00 63.85% 396 requests in 5.09s, 121.43KB readRequests/sec: 77.78Transfer/sec: 23.85KB登录后复制
php7 计算多情况
wrk -c36 -d 5s -t12 https://php7.test.com/v1/hello/wzh/index2Running 5s test @ https://php7.test.com/v1/hello/wzh/index2 12 threads and 36 connections Thread Stats Avg Stdev Max +/- Stdev Latency 1.02s 569.99ms 1.96s 57.14% Req/Sec 3.18 3.43 10.00 80.88% 70 requests in 5.03s, 21.60KB read Socket errors: connect 0, read 0, write 0, timeout 42Requests/sec: 13.91Transfer/sec: 4.29KB登录后复制
php8 JIT开启计算少情况
wrk -c36 -d 5s -t12 https://php8.test.com/v1/hello/wzh/index1Running 5s test @ https://php8.test.com/v1/hello/wzh/index1 12 threads and 36 connections Thread Stats Avg Stdev Max +/- Stdev Latency 34.48ms 4.34ms 95.45ms 87.87% Req/Sec 84.61 13.36 121.00 85.28% 5083 requests in 5.03s, 1.67MB readRequests/sec: 1010.55Transfer/sec: 340.43KB登录后复制
php8 JIT开启计算多情况
wrk -c36 -d 5s -t12 https://php8.test.com/v1/hello/wzh/index2Running 5s test @ https://php8.test.com/v1/hello/wzh/index2 12 threads and 36 connections Thread Stats Avg Stdev Max +/- Stdev Latency 97.84ms 4.97ms 159.50ms 92.12% Req/Sec 30.27 4.42 50.00 86.50% 1814 requests in 5.07s, 614.71KB readRequests/sec: 357.76Transfer/sec: 121.23KB登录后复制
php8 JIT关闭计算少情况
wrk -c36 -d 5s -t12 https://php8.test.com/v1/hello/wzh/index1Running 5s test @ https://php8.test.com/v1/hello/wzh/index1 12 threads and 36 connections Thread Stats Avg Stdev Max +/- Stdev Latency 38.10ms 6.47ms 239.60ms 94.01% Req/Sec 77.50 12.76 110.00 89.63% 4622 requests in 5.04s, 1.52MB readRequests/sec: 916.22Transfer/sec: 308.65KB登录后复制
php8 JIT关闭计算多情况
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1550登录后复制
[image:BA1A37D8-760E-4637-901B-3E3521F969E7-4107-0000191504DD1B2E/86D37899-3B46-4BDA-B396-E5C8DD51068E.png]
发现计算少情况下php8JIT是php7性能的13倍，而且计算越多优化越明显，计算多情况下php8JIT是php7性能的25.7倍。
但是有一个问题我觉得很神奇php8无JIT计算少的情况居然也优化了很多，我以为是测试方向的问题，但是经过多次论证，这个数据是准确的，有时间想找一下这里的优化点是什么。
编译过程吐槽：php手动编译越来越麻烦了，编译了2个小时才编译完，踩了N个坑，为了让大家多写几个需求，把坑分享出来
环境aliyun centos 6.9，咱们公司一般都是这个版本。
php源码编译php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1551登录后复制
这里一般都是makefile生成失败的，后面有生成失败的例子，生成成功后
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1552登录后复制配置php.ini
记住一定要把opcache.ini旧的配置也写上，JIT说到底还是对Opcache的优化。
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1553登录后复制configure失败解决方法
这里解决./configure 失败的一些问题
问题一php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1554登录后复制
解决办法
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1555登录后复制
注意
直接这样是不行的，yum仓库里的版本太低。
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1556登录后复制问题二
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1557登录后复制
解决办法
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1558登录后复制问题三
php -d -d opcache.jit_buffer_size=64M -d opcache.jit=1205 Zend/bench.phpsimple 0.001simplecall 0.000simpleucall 0.000simpleudcall 0.000mandel 0.005mandel2 0.006ackermann(7) 0.010ary(50000) 0.005ary2(50000) 0.004ary3(2000) 0.011fibo(30) 0.027hash1(50000) 0.027hash2(500) 0.018heapsort(20000) 0.011matrix(20) 0.011nestedloop(12) 0.006sieve(30) 0.004strcat(200000) 0.009------------------------Total 0.1559登录后复制
同样yum也是不行的，版本太低。
php Zend/bench.phpsimple 0.051simplecall 0.017simpleucall 0.083simpleudcall 0.089mandel 0.506mandel2 0.409ackermann(7) 0.095ary(50000) 0.012ary2(50000) 0.010ary3(2000) 0.187fibo(30) 0.367hash1(50000) 0.040hash2(500) 0.041heapsort(20000) 0.097matrix(20) 0.122nestedloop(12) 0.093sieve(30) 0.063strcat(200000) 0.018------------------------Total 2.2990登录后复制
解决办法
php Zend/bench.phpsimple 0.051simplecall 0.017simpleucall 0.083simpleudcall 0.089mandel 0.506mandel2 0.409ackermann(7) 0.095ary(50000) 0.012ary2(50000) 0.010ary3(2000) 0.187fibo(30) 0.367hash1(50000) 0.040hash2(500) 0.041heapsort(20000) 0.097matrix(20) 0.122nestedloop(12) 0.093sieve(30) 0.063strcat(200000) 0.018------------------------Total 2.2991登录后复制问题四
php Zend/bench.phpsimple 0.051simplecall 0.017simpleucall 0.083simpleudcall 0.089mandel 0.506mandel2 0.409ackermann(7) 0.095ary(50000) 0.012ary2(50000) 0.010ary3(2000) 0.187fibo(30) 0.367hash1(50000) 0.040hash2(500) 0.041heapsort(20000) 0.097matrix(20) 0.122nestedloop(12) 0.093sieve(30) 0.063strcat(200000) 0.018------------------------Total 2.2992登录后复制
解决办法
php Zend/bench.phpsimple 0.051simplecall 0.017simpleucall 0.083simpleudcall 0.089mandel 0.506mandel2 0.409ackermann(7) 0.095ary(50000) 0.012ary2(50000) 0.010ary3(2000) 0.187fibo(30) 0.367hash1(50000) 0.040hash2(500) 0.041heapsort(20000) 0.097matrix(20) 0.122nestedloop(12) 0.093sieve(30) 0.063strcat(200000) 0.018------------------------Total 2.2993登录后复制
Enjoy php 8 & JIT !
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