Di blogdetik.com sudah terinstall xcache. Cuman waktu itu gak ngeliat performance enhancement yang significant. Karena lagi nganggur, coba-coba testing lagi pake ab dengan jumlah request 100000 dan konkurensi 1. Konkurensi gak diset banyak, karena memang buat ngecek dari sisi loading script php-nya aja, apa bener sih opcode cache benar-benar bekerja maksimal. Waktu pertama ditest tanpa xcache, memori yang dikonsumsi webserver hanya 9-10Mbs (php-cgi). Hasil benchmark ab-nya:

Concurrency Level:      1
Time taken for tests:   12344.642804 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      1460381792 bytes
HTML transferred:       1398600000 bytes
Requests per second:    8.10 [#/sec] (mean)
Time per request:       123.446 [ms] (mean)
Time per request:       123.446 [ms] (mean, across all concurrent requests)
Transfer rate:          115.53 [Kbytes/sec] received

Sedangkan kalo dipasang xcache, memori yang dikonsumsi webserver 12-22Mb (php-cgi). Hasil benchmark-nya:

Concurrency Level:      1
Time taken for tests:   5754.861240 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Total transferred:      1460381652 bytes
HTML transferred:       1398600000 bytes
Requests per second:    17.38 [#/sec] (mean)
Time per request:       57.549 [ms] (mean)
Time per request:       57.549 [ms] (mean, across all concurrent requests)
Transfer rate:          247.82 [Kbytes/sec] received

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