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Full Discussion: Huge PI in vmstat
Operating Systems Solaris Huge PI in vmstat Post 302224324 by sparcguy on Tuesday 12th of August 2008 11:58:48 PM
Old 08-13-2008
in my views, from the above snapshot, the stats are not consistent, systems that experience performance problems will show symptoms of consistent stats. We not talking about consistent for only 10 or 20 minutes but for hours then only is it consider performance problems.
 

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scsi_free_consistent_buf(9F)				   Kernel Functions for Drivers 			      scsi_free_consistent_buf(9F)

NAME
scsi_free_consistent_buf - free a previously allocated SCSI DMA I/O buffer SYNOPSIS
#include <sys/scsi/scsi.h> void scsi_free_consistent_buf(struct buf *bp); INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). PARAMETERS
bp Pointer to the buf(9S) structure. DESCRIPTION
scsi_free_consistent_buf() frees a buffer header and consistent data buffer that was previously allocated using scsi_alloc_consis- tent_buf(9F). CONTEXT
scsi_free_consistent_buf() may be called from either the user or the interrupt levels. SEE ALSO
freerbuf(9F), scsi_alloc_consistent_buf(9F), buf(9S) Writing Device Drivers WARNING
scsi_free_consistent_buf() will call freerbuf(9F) to free the buf(9S) that was allocated before or during the call to scsi_alloc_consistent_buf(9F). If consistent memory is bound to a scsi_pkt(9S), the pkt should be destroyed before freeing the consistent memory. SunOS 5.10 20 Jul 1998 scsi_free_consistent_buf(9F)
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