On 5/16/26 7:59 PM, Qian Yun wrote:
> Good news!
>
> Answer to myself:
>
> In interpreter, all the computed value is stored in BOOT variable
> $frameRecord, it is used to implement ")undo".
> (This is found out by sb-ext:search-roots.)
>
> I use ")undo" very little. At least we should have a setting
> to toggle the ability of ")undo", just like ")history".
>
> So when this mechanism is disabled, we can further decrease the
> number of kernels in cache during a session.
It can be disabled by:
)boot $undoFlag := false
- Qian
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