Module Name: src Committed By: jruoho Date: Sat Mar 5 07:47:54 UTC 2011
Modified Files: src/share/man/man4: acpicpu.4 Log Message: Add one bug to the list. (Neither acpicpu(4) nor est(4) or powernow(4) handle possible skew in timers and counters such as TSC.) To generate a diff of this commit: cvs rdiff -u -r1.27 -r1.28 src/share/man/man4/acpicpu.4 Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/share/man/man4/acpicpu.4 diff -u src/share/man/man4/acpicpu.4:1.27 src/share/man/man4/acpicpu.4:1.28 --- src/share/man/man4/acpicpu.4:1.27 Fri Mar 4 06:01:25 2011 +++ src/share/man/man4/acpicpu.4 Sat Mar 5 07:47:54 2011 @@ -1,4 +1,4 @@ -.\" $NetBSD: acpicpu.4,v 1.27 2011/03/04 06:01:25 jruoho Exp $ +.\" $NetBSD: acpicpu.4,v 1.28 2011/03/05 07:47:54 jruoho Exp $ .\" .\" Copyright (c) 2010 Jukka Ruohonen <jruoho...@iki.fi> .\" All rights reserved. @@ -24,7 +24,7 @@ .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE .\" POSSIBILITY OF SUCH DAMAGE. .\" -.Dd March 4, 2011 +.Dd March 5, 2011 .Dt ACPICPU 4 .Os .Sh NAME @@ -317,6 +317,16 @@ .Xr acpitz 4 ) is not yet supported. .It +Depending on the processor, changes in C-, P-, +and T-states may all skew timers and counters such as +.Tn TSC . +This is neither handled by +.Nm +nor by +.Xr est 4 +and +.Xr powernow 4 . +.It There is currently neither a well-defined, machine-independent .Tn API for processor performance management nor a