XCache

XCache is a fast and stable PHP opcode cacher.

aptitude install php5-xcache

⇒ /etc/php5/conf.d/xcache.ini:

Gegebenenfalls Speicherlimit anpassen.

/usr/share/xcache/admin

In ein web Verzeichnis kopieren oder symlink erstellen.

ab -n 500 http://foo.bar/

Server Hostname:        foo.bar
Server Port:            80

Document Path:          /hp/
Document Length:        6535 bytes

Concurrency Level:      1
Time taken for tests:   55.526 seconds
Complete requests:      500
Failed requests:        0
Write errors:           0
Total transferred:      3521500 bytes
HTML transferred:       3267500 bytes
Requests per second:    9.00 [#/sec] (mean)
Time per request:       111.053 [ms] (mean)
Time per request:       111.053 [ms] (mean, across all concurrent requests)
Transfer rate:          61.93 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.0      0       0
Processing:   105  111  12.3    108     193
Waiting:       84   98  11.4     95     171
Total:        105  111  12.3    108     193

Percentage of the requests served within a certain time (ms)
  50%    108
  66%    109
  75%    109
  80%    110
  90%    114
  95%    118
  98%    162
  99%    190
 100%    193 (longest request)

Server Hostname:        foo.bar
Server Port:            80

Document Path:          /hp/
Document Length:        6535 bytes

Concurrency Level:      1
Time taken for tests:   21.309 seconds
Complete requests:      500
Failed requests:        0
Write errors:           0
Total transferred:      3521500 bytes
HTML transferred:       3267500 bytes
Requests per second:    23.46 [#/sec] (mean)
Time per request:       42.618 [ms] (mean)
Time per request:       42.618 [ms] (mean, across all concurrent requests)
Transfer rate:          161.38 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   0.0      0       0
Processing:    38   43   7.4     41      93
Waiting:       20   34   6.6     33      86
Total:         38   43   7.4     41      93

Percentage of the requests served within a certain time (ms)
  50%     41
  66%     42
  75%     43
  80%     43
  90%     43
  95%     50
  98%     76
  99%     78
 100%     93 (longest request)

XCache beschleunigt PHP im Test um ~60%.