nanoseconds } Tracing runtime 缺点：「你得自己维护一个 Go 分支」 有没有别的办法？ Tracing runtime 有 Profiler Label Go 1.9 is introducing profiler labels, a way to add arbitrary key-values to the samples collected by the P50 Duration 损耗 Master 102.1k \ 1.83ms \ 0.301ms \ profile + labels 98.9k 3.1% 1.87ms 2.1% 0.307ms 1.9% Runtime Hacking 98.9k 3.1 1.87ms 2.1% 0.304ms 0.98% 测试负载：sysbench oltp_point_select 并发：48 (TiDB

targetRuntime: Used to specify the runtime target for �→ generated code. It has MyBatis3DynamicSql / MyBatis3Kotlin / MyBatis3 / �→ MyBatis3Simple 4 selection to choice. --> given set {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}, you want to generate 4 buckets. The equal-depth histogram is as follows. It contains 1266 four buckets [1.6, 1.9], [2.0, 2.6], [2

targetRuntime: Used to specify the runtime target for generated code. It has MyBatis3DynamicSql / MyBatis3Kotlin / MyBatis3 / MyBatis3Simple 4 selection to �→ choice. --> 算便是借助该直方图来进行。 等深直方图，就是让落入每个桶里的值数量尽量相等。举个例子，比方说对于给定的集合 {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}，并且生成 4 个桶，那么最终的等深直方图就会如下图所示，包含四个桶 [1.6, 1.9]， [2.0, 2.6]，[2.7, 2.8]，[2.9, 3.5]，其桶深均为 3。 图 161:

given set {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}, you want to generate 4 buckets. The equal-depth histogram is as follows. It contains 602 four buckets [1.6, 1.9], [2.0, 2.6], [2

given set {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}, you want to generate 4 buckets. The equal-depth histogram is as follows. It contains 647 four buckets [1.6, 1.9], [2.0, 2.6], [2

given set {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}, you want to generate 4 buckets. The equal-depth histogram is as follows. It contains 623 four buckets [1.6, 1.9], [2.0, 2.6], [2

算便是借助该直方图来进行。 等深直方图，就是让落入每个桶里的值数量尽量相等。举个例子，比方说对于给定的集合 {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}，并且生成 4 个桶，那么最终的等深直方图就会如下图所示，包含四个桶 [1.6, 1.9]， [2.0, 2.6]，[2.7, 2.8]，[2.9, 3.5]，其桶深均为 3。 图 68:

算便是借助该直方图来进行。 等深直方图，就是让落入每个桶里的值数量尽量相等。举个例子，比方说对于给定的集合 {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}，并且生成 4 个桶，那么最终的等深直方图就会如下图所示，包含四个桶 [1.6, 1.9]， [2.0, 2.6]，[2.7, 2.8]，[2.9, 3.5]，其桶深均为 3。 图 68:

given set {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}, you want to generate 4 buckets. The equal-depth histogram is as follows. It contains 745 four buckets [1.6, 1.9], [2.0, 2.6], [2

算便是借助该直方图来进行。 等深直方图，就是让落入每个桶里的值数量尽量相等。举个例子，比方说对于给定的集合 {1.6, 1.9, 1.9, 2.0, 2.4, 2.6, 2.7, 2.7, 2.8, 2.9, 3.4, 3.5}，并且生成 4 个桶，那么最终的等深直方图就会如下图所示，包含四个桶 [1.6, 1.9]， [2.0, 2.6]，[2.7, 2.8]，[2.9, 3.5]，其桶深均为 3。 图 68: