所用脚本:
<?php
$before = microtime(true);
$list= array(
"keya" => "the value a"
,"keyb" => "the value b"
,"keyc" => "the value c"
,"keyd" => "the value c"
,"keye" => "the value c"
);
for ($i=0 ; $i<100000 ; $i++) {
serialize($list);
}
$after = microtime(true);
echo ($after-$before)/$i . " sec/serialize ";
  1) 台式机 desktop01
  OS 名称: Microsoft Windows 7 旗舰版
  OS 版本: 6.1.7601 Service Pack 1 Build 7601
  Intel Core I3 4160@3.60GHz
  [01]: Intel64 Family 6 Model 60 Stepping 3 GenuineIntel ~3600
  PHP 5.3.10 (cli) (built: Feb  2 2012 20:27:51)
  D:projperf_test_php>php . est.php
  1.7948508262634E-6 sec/serialize
  D:projperf_test_php>php . est.php
  2.0318198204041E-6 sec/serialize
  D:projperf_test_php>php . est.php
  2.0627999305725E-6 sec/serialize
  2)精伦盒子 H1 (悲催的大了一个数量级)
  Processor : ARMv7 Processor rev 1 (v7l)
  processor : 0
  BogoMIPS : 1196.03
  Features : swp half thumb fastmult vfp edsp thumbee vfpv3 vfpv3d16
  CPU implementer : 0x41
  CPU architecture: 7
  CPU variant : 0x1
  CPU part : 0xc09
  CPU revision : 1
  Hardware : NXP BL-STB platform
  root@routon-h1:/mnt/usb/perf_test_php# ./test.php
  3.1562120914459E-5 sec/serialize
  root@routon-h1:/mnt/usb/perf_test_php# ./test.php
  3.129940032959E-5 sec/serialize
  root@routon-h1:/mnt/usb/perf_test_php# ./test.php
  3.1241970062256E-5 sec/serialize
  3)联想G560 显卡虽然不行,CPU还是很给力的。
  [01]: Intel64 Family 6 Model 37 Stepping 2 GenuineIntel ~2266 Mhz
  Intel Core i3 CPU M350@2.2Hz
  PHP 5.3.10 (cli) (built: Feb 2 2012 20:27:51)
  Win7:
  C:workperf_test_php>php . est.php
  3.260669708252E-6 sec/serialize
  C:workperf_test_php>php . est.php
  3.2750701904297E-6 sec/serialize
  C:workperf_test_php>php . est.php
  3.3444595336914E-6 sec/serialize
  因为是双系统,用Kali Linux 1.0a , php 5.4 再测了一下, 发觉linux下性能好很多(php5.4 也有关系?)
  root@localhost:/media/h3usb/perf_test_php# php ./test.php
  1.9158411026001E-6 sec/serialize
  root@localhost:/media/h3usb/perf_test_php# php ./test.php
  1.947169303894E-6 sec/serialize
  root@localhost:/media/h3usb/perf_test_php# php ./test.php
  1.9439005851746E-6 sec/serialize
  4)联想上网本 S12, 比精伦盒子H1 还是要好一点的
  Intel Atom N270 @1.6 GHz
  [01]: x86 Family 6 Model 28 Stepping 2 GenuineIntel ~1600 Mhz
  D:perf_test_php>php test.php
  1.8191859722137E-5 sec/serialize
  D:perf_test_php>php test.php
  1.8366029262543E-5 sec/serialize
  D:perf_test_php>php test.php
  1.8153069019318E-5 sec/serialize
  5)Think Pad T43 的表现很抢眼。 Interl Pentium 1.7Ghz
Windows XP, php 5.3 :
C:work>php perf_test.php
6.4734196662903E-6 sec/serialize
C:work>php perf_test.php
6.4791107177734E-6 sec/serialize
C:work>php perf_test.php
6.4785194396973E-6 sec/serialize
Linux 上,差别不大。 Linux kali-t43 3.18.0-kali3-686-pae
root@kali-t43:~# php ./perf-test.php
6.5963220596313E-6 sec/serialize
root@kali-t43:~# php ./perf-test.php
6.4203810691833E-6 sec/serialize
root@kali-t43:~# php ./perf-test.php
6.4209914207458E-6 sec/serialize