chenbokai commented on issue #183: some confusion about lantency URL: https://github.com/apache/distributedlog/issues/183#issuecomment-328407257 Thank you for answer my question.It inspired me that when three bookies run in different processing speed may cause that situation,so i check data. However, bookies processing speed seem like same and they are higher than bookkeeper_client.Here is the data: "dlwrite.dl.per_channel_bookie_client.192_168_1_41_3181.ADD_ENTRY" : { "count" : 707932, "max" : 0.039316404, "mean" : 7.294639961089494E-4, "min" : 2.75805E-4, "p50" : 3.984705E-4, "p75" : 4.2659500000000004E-4, "p95" : 7.601880999999999E-4, "p98" : 8.955364600000001E-4, "p99" : 0.01701617963000005, "p999" : 0.03927668229400001, "stddev" : 0.00278056131831563, "m15_rate" : 1891.799670421043, "m1_rate" : 1635.4133239140433, "m5_rate" : 1752.104374396801, "mean_rate" : 1818.8154766734172, "duration_units" : "seconds", "rate_units" : "calls/second" }, "dlwrite.dl.per_channel_bookie_client.192_168_1_51_3181.ADD_ENTRY" : { "count" : 707933, "max" : 0.041522023000000005, "mean" : 6.320614114785992E-4, "min" : 2.9043E-4, "p50" : 5.07891E-4, "p75" : 5.4467125E-4, "p95" : 6.306521E-4, "p98" : 8.9673956E-4, "p99" : 9.898051300000009E-4, "p999" : 0.040984281597000065, "stddev" : 0.001659605235734714, "m15_rate" : 1891.9023616719758, "m1_rate" : 1649.1939141689302, "m5_rate" : 1758.0522945453104, "mean_rate" : 1819.096539916557, "duration_units" : "seconds", "rate_units" : "calls/second" }, "dlwrite.dl.per_channel_bookie_client.192_168_1_61_3181.ADD_ENTRY" : { "count" : 707933, "max" : 0.038555315, "mean" : 6.465415389105059E-4, "min" : 2.7362800000000004E-4, "p50" : 4.183085E-4, "p75" : 4.452785E-4, "p95" : 6.577250999999996E-4, "p98" : 8.975637999999999E-4, "p99" : 0.008250984760000094, "p999" : 0.03834831407300003, "stddev" : 0.0021840395244698825, "m15_rate" : 1891.9064686175013, "m1_rate" : 1649.062855162423, "m5_rate" : 1757.9963518522115, "mean_rate" : 1819.0914454770852, "duration_units" : "seconds", "rate_units" : "calls/second" }, "dlwrite.dl.bookkeeper_client.ADD_ENTRY" : { "count" : 707931, "max" : 0.013280118, "mean" : 5.022563307392996E-4, "min" : 3.6949300000000003E-4, "p50" : 4.7803300000000005E-4, "p75" : 5.090157500000001E-4, "p95" : 5.7123375E-4, "p98" : 5.973867E-4, "p99" : 6.266521E-4, "p999" : 0.012919525446000045, "stddev" : 4.0124739391973426E-4, "m15_rate" : 1891.6915529102328, "m1_rate" : 1574.91892387704, "m5_rate" : 1726.0401619220734, "mean_rate" : 1817.5354915211597, "duration_units" : "seconds", "rate_units" : "calls/second" }, But i think it maybe a rough conclusion through judging by mean rate. Is there possible that situation: A(below average) B(below average) C(above average);then A(below average) B(above average) C(below average) and in turn. So we can't compare both mean rate because bookkeeper_client is always lower than per_channel_bookie_client. By the way,will there be any performance improvements in the future? I am very much looking forward to seeing it! ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
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