其实之前http 2.4.1刚出来的时候就很多做对比的了。 大部分分测试表明对于静态文件而已，nginx的性能还是会稍微好些，但是event模式下的httpd比之前的性能是提升得太多太多了。httpd安装起来比较麻烦，尤其是在老掉牙的机器上。
httpd 2.4.4在RHEL 4.8的安装过程大概这样的：
1. 下载最新的httpd 2.4.4解压，然后再下载apr-1.4.6.tar.bz2和apr-util-1.5.1.tar.bz2放到httpd目录下的srclib,解压后把文件夹更名为apr和apr-util.
2.安装新版的pcre，我直接在sourceforge.net上下载的.然后编译安装pcre
./configure –prefix=/opt/install/pcre-8.32 –enable-pcre32 –enable-jit –enable-utf –enable-pcre16
3.配置httpd编译
./configure –prefix=/opt/install/httpd-2.4.4 –enable-rewrite –enable-cache –enable-ssl –enable-static-ab –enable-ssl –with-included-apr –with-pcre=/opt/install/pcre-8.32/ –with-mpm=event
安装好后简单做了一个测试，0.6k的小页面。
[text]
nginx 10 25858.43 0.387
httpd 10 14952.54 0.669
nginx 20 27045.38 0.739
httpd 20 14793.54 1.352
nginx 30 28513.76 1.052
httpd 30 13755.20 2.181
nginx 40 26083.62 1.534
httpd 40 14023.01 2.852
nginx 50 27685.62 1.806
httpd 50 14813.10 3.375
nginx 60 26779.80 2.240
httpd 60 14539.48 4.127
nginx 70 26792.31 2.613
httpd 70 15989.91 4.378
nginx 80 28039.97 2.853
httpd 80 16502.71 4.848
nginx 90 26900.55 3.346
httpd 90 15947.58 5.643
nginx 100 38173.08 2.620
httpd 100 16635.71 6.011
nginx 110 28921.72 3.803
httpd 110 16162.35 6.806
nginx 120 25804.12 4.650
httpd 120 16637.97 7.212
nginx 130 26505.68 4.905
httpd 130 18882.23 6.885
nginx 140 29669.50 4.719
httpd 140 19844.80 7.055
nginx 150 28969.08 5.178
httpd 150 19787.36 7.581
nginx 160 27424.76 5.834
httpd 160 19325.51 8.279
nginx 170 28747.23 5.914
httpd 170 21197.41 8.020
nginx 180 27160.77 6.627
httpd 180 23673.76 7.603
nginx 190 27627.75 6.877
httpd 190 21609.25 8.793
nginx 200 24602.16 8.129
httpd 200 21169.24 9.448
nginx 210 26838.70 7.825
httpd 210 21666.67 9.692
nginx 220 31374.85 7.012
httpd 220 21994.93 10.002
nginx 230 27740.35 8.291
httpd 230 22525.72 10.211
nginx 240 27235.49 8.812
httpd 240 21815.80 11.001
nginx 250 26522.97 9.426
httpd 250 22031.17 11.348
nginx 260 25099.80 10.359
httpd 260 22568.75 11.520
nginx 270 26291.50 10.269
httpd 270 22478.80 12.011
nginx 280 25170.07 11.124
httpd 280 21437.80 13.061
nginx 290 24715.85 11.733
httpd 290 21608.02 13.421
nginx 300 24808.90 12.092
httpd 300 21850.39 13.730
nginx 310 27543.54 11.255
httpd 310 23166.22 13.382
nginx 320 26233.97 12.198
httpd 320 23188.51 13.800
nginx 330 25436.90 12.973
httpd 330 23033.17 14.327
nginx 340 26146.07 13.004
httpd 340 23096.69 14.721
nginx 350 25621.51 13.660
httpd 350 23384.09 14.967
nginx 360 26820.90 13.422
httpd 360 22797.59 15.791
nginx 370 25497.89 14.511
httpd 370 22911.63 16.149
nginx 380 25046.86 15.172
httpd 380 22242.29 17.085
nginx 390 26514.52 14.709
httpd 390 22806.97 17.100
nginx 400 24104.89 16.594
httpd 400 22924.32 17.449
nginx 410 26306.69 15.585
httpd 410 22585.88 18.153
nginx 420 26518.78 15.838
httpd 420 22691.66 18.509
nginx 430 27305.07 15.748
httpd 430 23292.43 18.461
nginx 440 27557.12 15.967
httpd 440 22258.63 19.768
nginx 450 26536.61 16.958
httpd 450 22237.17 20.236
nginx 460 25901.85 17.759
httpd 460 22664.55 20.296
nginx 470 24743.76 18.995
httpd 470 22935.42 20.492
nginx 480 26813.46 17.901
httpd 480 23693.59 20.259
nginx 490 25869.61 18.941
httpd 490 23374.27 20.963
nginx 500 24618.19 20.310
httpd 500 22318.36 22.403
[/text]
从图可以看出httpd 2.4.4在高并发的还是略逊于nginx。