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** javascript.options.baselinejit.threshold: for most test cases that completes quickly (< 100 ms), the default value performs similarly to the other values. Setting it to 50 is likely to have a smaller variation. For test cases that take longer time (> 200 ms) Setting the pref to 50 almost outperforms the default value. The only exception is test 'test_firefox_gslide_ail_pagedown_0', but the difference is marginal (within 1 frame). | ** javascript.options.baselinejit.threshold: for most test cases that completes quickly (< 100 ms), the default value performs similarly to the other values. Setting it to 50 is likely to have a smaller variation. For test cases that take longer time (> 200 ms) Setting the pref to 50 almost outperforms the default value. The only exception is test 'test_firefox_gslide_ail_pagedown_0', but the difference is marginal (within 1 frame). | ||
** javascript.options.ion.threshold: for test cases that completes under 100 ms, the default value (1000) or a larger value almost always perform better than 1. For some test cases (< 100 ms), the default value performs worse than 1, but the difference is marginal: test 'test_firefox_gsearch_ail_select_search_suggestion' completes in 15 ms in average using threshold 1, which is about 1 frame faster than the default. For larger test cases that completes > 300 ms, the default is almost always better than 1, showing that the performance gain is offset by the cost of compilation, and 10000 performs slightly better than the default for gmail and Facebook. One test that is of interest is 'test_firefox_outlook_ail_composemail_0', in which using 1 for eager compilation performs significantly better then default (about 100ms in difference). This is worthy of further look. | ** javascript.options.ion.threshold: for test cases that completes under 100 ms, the default value (1000) or a larger value almost always perform better than 1. For some test cases (< 100 ms), the default value performs worse than 1, but the difference is marginal: test 'test_firefox_gsearch_ail_select_search_suggestion' completes in 15 ms in average using threshold 1, which is about 1 frame faster than the default. For larger test cases that completes > 300 ms, the default is almost always better than 1, showing that the performance gain is offset by the cost of compilation, and 10000 performs slightly better than the default for gmail and Facebook. One test that is of interest is 'test_firefox_outlook_ail_composemail_0', in which using 1 for eager compilation performs significantly better then default (about 100ms in difference). This is worthy of further look. | ||
** dom.idle_period.throttled_length: the default (10000) value performs similarly to the other 2 test values. Some test cases are noteworthy: in 'test_firefox_gsheet_ail_clicktab_0', 65536 performs better than default. | ** dom.idle_period.throttled_length: the default (10000) value performs similarly to the other 2 test values. Some test cases are noteworthy: in 'test_firefox_gsheet_ail_clicktab_0', 65536 performs better than default. (This pref is no longer in existence now). | ||
** network.buffer.cache.size for most test cases, the default (32768) performs similarly with a larger value (65536). The only test case that has noteworthy difference is 'test_firefox_gsheet_ail_clicktab_0', but the difference (~ 1 frame in mean, or 40 ms in median) may not be of interest compared to test case running time (> 900 ms). | |||
** network.http.spdy.chunk-size: there is no noteworthy performance difference in using non-default values. | |||
** network.predictor.preconnect-min-confidence: there is no noteworthy performance difference in using non-default values. The only exception is test case 'test_firefox_gsheet_ail_clicktab_0'. More tests against is is on the fly. Results to be updated. | |||
** layout.display-list.retain | |||
** network.tcp.sendbuffer: for most test cases, there is no noteworthy performance difference in using non-default values. The only exception is 'test_firefox_gsheet_ail_clicktab_0', where 65536 performs better than the default. | |||
** network.http.speculative-parallel-limit: for most test cases, there is no noteworthy performance difference in using non-default values. The only exception is 'test_firefox_gsheet_ail_clicktab_0', where the default value (6) performs worse than the other 2 values under test. | |||
** network.http.spdy.default-concurrent: for most test cases, there is no noteworthy performance difference in using non-default values. The only exception is 'test_firefox_gsheet_ail_clicktab_0', but the default value has contradictory results in mean and median compared to the other 2 tested values. | |||
** network.http.max-persistent-connections-per-server: for most test cases, there is no noteworthy performance difference in using non-default values. The only exception is 'test_firefox_gsheet_ail_clicktab_0', where 1 performs better than the default. | |||
== External Links == | == External Links == | ||