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doc: foot.5: minor updates to 'tweaks'

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Daniel Eklöf 2020-03-30 20:21:23 +02:00
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@ -294,8 +294,8 @@ any of these options.
While it should be possible to estimate the amount of time left While it should be possible to estimate the amount of time left
until the next frame, foot's algorithm is currently not that until the next frame, foot's algorithm is currently not that
advanced, but is based on statistics I guess you could say - the advanced, but is based on statistics I guess you could say - the
delay we introduce is so small that the chance of pushing the delay we introduce is so small that the risk of pushing the frame
frame over to the next frame interval is also very small. over to the next frame interval is also very small.
Now, that was a lof of text. But what is it foot actually does? Now, that was a lof of text. But what is it foot actually does?
@ -327,13 +327,13 @@ any of these options.
*max-shm-pool-size-mb* *max-shm-pool-size-mb*
This option controls the amount of *virtual* memory used by the This option controls the amount of *virtual* memory used by the
pixmap memory to which the terminal screen content is rendered to. pixmap memory to which the terminal screen content is rendered.
It does *not* change how much physical memory foot uses. It does *not* change how much physical memory foot uses.
Foot uses a memory mapping trick to implement fast rendering of Foot uses a memory mapping trick to implement fast rendering of
interactive (typically, but applies to "slow" scrolling in interactive scrolling (typically, but applies to "slow" scrolling
general). Example: holding down the 'up' or 'down' arrow key to in general). Example: holding down the 'up' or 'down' arrow key to
scroll in a text editor. scroll in a text editor.
For this to work, it needs a large amount of virtual address For this to work, it needs a large amount of virtual address
@ -360,4 +360,6 @@ any of these options.
allowed value, 2GB (but note that you most likely will not notice allowed value, 2GB (but note that you most likely will not notice
any difference compared to the default value). any difference compared to the default value).
Note: this feature is always disabled in 32-bit.
Default: _512_. Maximum allowed: _2048_ (2GB). Default: _512_. Maximum allowed: _2048_ (2GB).