Messages in this thread Patch in this message | | | Date | Wed, 05 Mar 2008 12:54:38 +0100 | From | Martin Schwidefsky <> | Subject | [patch 06/10] sclp_vt220: speed up console output for interactive work |
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From: Christian Borntraeger <borntraeger@de.ibm.com>
Currently an output buffer can wait up to HZ/2 until the buffer is flushed. The wait time is noticeable in interactive tools like mc.
Change the value to HZ/20, which seems enough for interactive work.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> ---
drivers/s390/char/sclp_vt220.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Index: quilt-2.6/drivers/s390/char/sclp_vt220.c =================================================================== --- quilt-2.6.orig/drivers/s390/char/sclp_vt220.c +++ quilt-2.6/drivers/s390/char/sclp_vt220.c @@ -367,7 +367,7 @@ sclp_vt220_timeout(unsigned long data) sclp_vt220_emit_current(); } -#define BUFFER_MAX_DELAY HZ/2 +#define BUFFER_MAX_DELAY HZ/20 /* * Internal implementation of the write function. Write COUNT bytes of data -- blue skies, Martin.
"Reality continues to ruin my life." - Calvin.
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