windows7+apache2.21+php5.2.17+Xcache3.0
具体性能测试用的是apache自带的ab工具，以下是截图：测试的index.php是一个首页，其中主要是连接数据库的操作：
使用xcache之后的效果：
具体的php.ini文件中对于xcache的配置
extension = php_xcache.dll
[xcache.admin]
xcache.admin.enable_auth = On
xcache.admin.user = "mOo"
; xcache.admin.pass = md5($您的密码)
; 登录使用 $your_password
xcache.admin.pass = ""
[xcache]
; ini only settings, all the values here is default unlessexplained
; select low level shm/allocator scheme implemenation
xcache.shm_scheme= "mmap"
; to disable: xcache.size=0
; to enable : xcache.size=64M etc (any size > 0) andyour system mmap allows
xcache.size = 60M
; set to cpu count (cat /proc/cpuinfo |grep -c processor)
xcache.count= 1
; just a hash hints, you can always store count(items)> slots
xcache.slots= 8K
; ttl of the cache item, 0=forever
xcache.ttl = 0
; interval of gc scanning expired items, 0=no scan, other values isin seconds
xcache.gc_interval= 0
; same as aboves but for variable cache
xcache.var_size = 4M
xcache.var_count= 1
xcache.var_slots= 8K
; default value for $ttl parameter of xcache_*() functions
xcache.var_ttl = 0
; hard limit ttl that cannot be exceed by xcache_*() functions.0=unlimited
xcache.var_maxttl = 0
xcache.var_gc_interval= 300
; mode:0, const string specified by xcache.var_namespace
; mode:1, $_SERVER[xcache.var_namespace]
; mode:2, uid or gid (specified by xcache.var_namespace)
xcache.var_namespace_mode= 0
xcache.var_namespace= ""
; N/A for /dev/zero
xcache.readonly_protection = Off
; for *nix, xcache.mmap_path is a file path, not directory. (autocreate/overwrite)
; Use something like "/tmp/xcache" instead of "/dev/*" if you wantto turn on ReadonlyProtection
; different process group of php won't share the same/tmp/xcache
; for win32, xcache.mmap_path=anonymous map name, not filepath
xcache.mmap_path= "/tmp/xcache"
; leave it blank(disabled) or "/tmp/phpcore/"
; make sure it's writable by php (open_basedir is notchecked)
xcache.coredump_directory = ""
; disable cache after crash
xcache.disable_on_crash= Off
; enable experimental documented features for each release ifavailable
xcache.experimental= Off
; per request settings. can ini_set, .htaccess etc
xcache.cacher= On
xcache.stat = On
xcache.optimizer= Off
[xcache.coverager]
; enabling this feature will impact performance
; enabled only if xcache.coverager == On&& xcache.coveragedump_directory =="non-empty-value"
; per request settings. can ini_set, .htaccess etc
; enable coverage data collecting andxcache_coverager_start/stop/get/clean() functions
xcache.coverager= Off
xcache.coverager_autostart = On
; set in php ini file only
; make sure it's readable (open_basedir is checked) by coverageviewer script
xcache.coveragedump_directory = ""
从结果对比上来看，性能提升惊人呢，足足有10倍呢，实际环境如果也是这样的话，那就太好了.
装上xcache3.0之后发现网站打不开了，报出的错误是：
Debugger compile handler overriden, cannot continue
具体原因是：
xcache与zend debugger冲突，不过也有解决办法的。
将zend_debugger.expose_remotely=allowed_hosts或是allways 这一行注释掉
[zend dubugger]
zend_extension_ts="D:\PHP\ext\ZendDebugger.dll"
zend_debugger.allow_hosts=127.0.0.1
;zend_debugger.expose_remotely=allowed_hosts
另外xcache与zend Optimizer的ZendExtensionManager.dll也冲突，建议不要使用。
看来zend公司的产品也很挑剔啊，使用了zend gurad产品或zendOptimizer如果想装php优化器的话看来只能装APC了，之前装过windows版的eaccelerator优化器,发现大并发大访问量的时候直接会导致apache停止，所以也是不能使用的。