在不这样设置的情况下，获取每行包含三个 VARCHAR 列的 10,000 个行所需的平均时间为 22 秒。

Without this setting, the time required to fetch 10,000 rows of three VARCHAR columns took an average of 22 seconds.

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标签中的最后一行显示，完成该GC周期用了26毫秒的时间。

The last line in the tag shows the GC cycle was completed in 26 milliseconds.

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标签中的第一行显示，该线程需要32个字节，而且，自上次内存分配失败以来(即自上次发生gc以来)，已经有286毫秒的时间。

The first line in the tag shows that the thread needed 32 bytes and it has been 286 milliseconds since the last memory allocation failure (i.e., since the last GC occurred).

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