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$FreeBSD$
.Dd November 25, 2007 .Dt PMC_GET_DRIVER_STATS 3 .Os .Sh NAME .Nm pmc_get_driver_stats .Nd retrieve driver statistics .Sh LIBRARY .Lb libpmc .Sh SYNOPSIS n pmc.h .Ft int .Fn pmc_get_driver_stats "struct pmc_driverstats *gms" .Sh DESCRIPTION The function .Fn pmc_get_driver_statistics retrieves a snapshot of the usage statistics maintained by .Xr hwpmc 4 into the memory area pointed to by argument .Fa gms .
p The returned structure includes the following fields: l -tag -width pmc_intr_bufferfull -offset indent -compact t pm_intr_ignored The number of sampling interrupts ignored. t pm_intr_processed The number of sampling interrupts processed. t pm_intr_bufferfull The number of sampling interrupts dropped due to lack of space in the sample buffer. t pm_syscalls The number of system calls into .Xr hwpmc 4 . t pm_syscalls_errors The number of system calls into .Xr hwpmc 4 that failed. t pm_buffer_requests The number of log buffer requests so far. t pm_buffer_requests_failed The number of log buffer requests that failed due to lack of buffers. t pm_log_sweeps The number of sample buffer processing sweeps. .El .Sh RETURN VALUES .Rv -std .Sh SEE ALSO .Xr pmc 3 , .Xr hwpmc 4