如何停止评估一个大的repl结果导致slime与swank clojure减速？

Question

Whenever I evaluate a large value that prints a large datastructure into the repl, slime becomes very slow from then on. Typing anything subsequently into the repl shows a delay in values appearing in the repl and further evaluation of any clojure code is slow. The only thing that seems to work is restarting the repl which doesn't seem like a solution.

An simple example of a large datastructure is slurping a file and then printing it (this could even be a fairly small file).

This seems to happen both in Win7 and Ubuntu.

Any ideas on how to stop this and why it is happening would be appreciated!

Answer 1

When I've run into this issue (which happens often), I simply clear the repl buffer. You can do this with Cc Mo, or by using "Clear Buffer" under the "REPL" menu item. This doesn't restart the repl, and command history and the like are unaffected.

Answer 2

可以控制从REPL打印多少信息的一种方法是使用*print-length*和*print-level*变量从clojure本身。