Messages in this thread Patch in this message | | | From | Martin Kepplinger <> | Subject | [PATCH] tty: increase the default flip buffer limit to 2*640K | Date | Mon, 28 Jan 2019 17:38:43 +0100 |
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From: Manfred Schlaegl <manfred.schlaegl@ginzinger.com>
The default value for this was 64K. We increase this by a factor of 10 to 640K to prevent data loss when using fast serial interfaces.
Since this value is only a maximum limit for allocation and isn't used by default, this change has minimal effect on systems with slow interfaces.
Signed-off-by: Manfred Schlaegl <manfred.schlaegl@ginzinger.com> Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com> ---
Is there any reason for this _limit_ to be as small as 64K?
thanks,
martin
drivers/tty/tty_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 77070c2d1240..ec145a59f199 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -26,7 +26,7 @@ * Byte threshold to limit memory consumption for flip buffers. * The actual memory limit is > 2x this amount. */ -#define TTYB_DEFAULT_MEM_LIMIT 65536 +#define TTYB_DEFAULT_MEM_LIMIT (640 * 1024UL) /* * We default to dicing tty buffer allocations to this many characters -- 2.20.1
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