diff options
| author | jhb <jhb@FreeBSD.org> | 2012-04-05 17:13:14 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2012-04-05 17:13:14 +0000 |
| commit | 5829de48d948e74cb77c117659140afff0ee33b3 (patch) | |
| tree | c9ac7a271fa3242d8c2cd110bfe596a577e6f5f0 /usr.bin/ktrace | |
| parent | 1bdacb70cf554a29338ec17d997277abfc6f57e1 (diff) | |
| download | FreeBSD-src-5829de48d948e74cb77c117659140afff0ee33b3.zip FreeBSD-src-5829de48d948e74cb77c117659140afff0ee33b3.tar.gz | |
Add new ktrace records for the start and end of VM faults. This gives
a pair of records similar to syscall entry and return that a user can
use to determine how long page faults take. The new ktrace records are
enabled via the 'p' trace type, and are enabled in the default set of
trace points.
Reviewed by: kib
MFC after: 2 weeks
Diffstat (limited to 'usr.bin/ktrace')
| -rw-r--r-- | usr.bin/ktrace/ktrace.1 | 6 | ||||
| -rw-r--r-- | usr.bin/ktrace/ktrace.h | 3 | ||||
| -rw-r--r-- | usr.bin/ktrace/subr.c | 3 |
3 files changed, 9 insertions, 3 deletions
diff --git a/usr.bin/ktrace/ktrace.1 b/usr.bin/ktrace/ktrace.1 index 86f23ef..28a5f7a 100644 --- a/usr.bin/ktrace/ktrace.1 +++ b/usr.bin/ktrace/ktrace.1 @@ -28,7 +28,7 @@ .\" @(#)ktrace.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" -.Dd October 10, 2011 +.Dd April 5, 2012 .Dt KTRACE 1 .Os .Sh NAME @@ -108,6 +108,8 @@ The following table equates the letters with the tracepoints: .Bl -tag -width flag -compact .It Cm c trace system calls +.It Cm f +trace page faults .It Cm i trace .Tn I/O @@ -129,7 +131,7 @@ trace requests .It Cm + trace the default set of trace points - -.Cm c , i , n , p , s , t , u , y +.Cm c , f , i , n , p , s , t , u , y .El .It Ar command Execute diff --git a/usr.bin/ktrace/ktrace.h b/usr.bin/ktrace/ktrace.h index e4e4dbf..220eb83 100644 --- a/usr.bin/ktrace/ktrace.h +++ b/usr.bin/ktrace/ktrace.h @@ -32,7 +32,8 @@ #define DEF_POINTS (KTRFAC_SYSCALL | KTRFAC_SYSRET | KTRFAC_NAMEI | \ KTRFAC_GENIO | KTRFAC_PSIG | KTRFAC_USER | \ - KTRFAC_STRUCT | KTRFAC_SYSCTL | KTRFAC_CAPFAIL) + KTRFAC_STRUCT | KTRFAC_SYSCTL | KTRFAC_CAPFAIL | \ + KTRFAC_FAULT | KTRFAC_FAULTEND) #define PROC_ABI_POINTS (KTRFAC_PROCCTOR | KTRFAC_PROCDTOR) diff --git a/usr.bin/ktrace/subr.c b/usr.bin/ktrace/subr.c index 5051de8..eacd44c 100644 --- a/usr.bin/ktrace/subr.c +++ b/usr.bin/ktrace/subr.c @@ -64,6 +64,9 @@ getpoints(char *s) case 'i': facs |= KTRFAC_GENIO; break; + case 'f': + facs |= KTRFAC_FAULT | KTRFAC_FAULTEND; + break; case 'n': facs |= KTRFAC_NAMEI; break; |
