Listing 2 Polyfill-2.pg

1. /*
2.  * PolyFill-2 workload designed to pre-fill the caches  before
3.  * running PolyMix-2 experiments
4.  *
5.  */
6.
7. // These specs must be kept in sync with the PolyMix-2  workload
8. // Eventually we will re-arrange .pg files to make this  synchronization
9. // automatic (XXX)
10.
11. #include `\"{}/usr/local/polydev/workloads/include/contents.pg`\"{}
12. #include `\"{}/usr/local/polydev/workloads/include/phases.pg`\"{}
13.
14. // there is one workload parameter, namely cache size
15. size Cache_size = 2GB; // adjust as needed
16.
17. // make contents 100% cachable
18. [ cntImage.cachable, cntHTML.cachable, cntDownload.cachable,
19.   cntOther.cachable ] = 100%;
20.
21. // the price for having no pointers/references in PGL:
22. // we have to re-define the relationship after modifying cntImage
23. cntHTML.may_contain = [ cntImage ];
24.
25. // describe PolyFill-2 server
26. Server S = {
27.         kind  = `\"{}PolyFill-2-srv`\"{};       // just a label
28.
29.         contents   = [ cntImage: 65%, cntHTML: 15%, cntDownload: 0.5%, \
                           cntOther  ];
30.         direct_access  = [ cntHTML: 95%, cntDownload: 0.8%, cntOther ];
31.
32.         pconn_use_lmt  = zipf(16);
33.         idle_pconn_tout  = 15sec;
34.         http_versions  = [`\"{}1.0`\"{} ];   // newer agents use
HTTP/1.1 by default
35. };
36.
37. // where the simulated servers and robots will be located
38. // these ips will need adjustments based on your local  environment
39. addr[] srv_ips = ['10.100.1.3:8080', '10.100.1.3:8888'  ];
40. addr[] rbt_ips = ['10.100.123.123' ** 5 ];
41.
42. // describe PolyFill-2 robot
43. Robot R = {
44.         kind  = `\"{}PolyFill-2-rbt`\"{};           // just a label
45.         origins  = srv_ips;
46.
47.         recurrence       =  5%;            // just a little bit of hits
48.         embed_recur      =  100%;
49.         interests  = [`\"{}public`\"{}: 50%, `\"{}private`\"{}  ];
50.         pop_model  = { pop_distr = popUnif(); };
51.
52.         pconn_use_lmt  = zipf(64);
53.         http_versions  = [`\"{}1.0`\"{} ];   // newer agents use
HTTP/1.1 by default
54. };
55.
56.
57. /* phases */
58.
59. Phase phWarm = { name = `\"{}warm`\"{};  goal.duration = 2min; \
                     log_stats = false; };
60. Phase phMeas = { name = `\"{}meas`\"{};  goal.fill_size =
                     2*Cache_size; };
61.
62. // build schedule using some well-known phases and phases defined above
63. schedule(phWarm, phMeas, phCool);
64.
65. // assign agents (servers and robots) to their hosts
66. S.addresses = srv_ips;
67. R.addresses = rbt_ips;
68.
69. // commit to using these servers and robots
70. use(S, R);