lockstat(7d) [opensolaris man page]

lockstat(7D)							      Devices							      lockstat(7D)

NAME

       lockstat - DTrace kernel lock instrumentation provider

DESCRIPTION

       The  lockstat  driver is a DTrace dynamic tracing provider that performs dynamic instrumentation for locking primitives in the Solaris ker-
       nel.

       The lockstat provider makes probes available that you can use to discern lock contention statistics, or to understand virtually any  aspect
       of locking behavior inside the operating system kernel. The lockstat(1M) command is implemented as a DTrace consumer that uses the lockstat
       provider to gather raw data.

       The lockstat driver is not a public interface and you access the instrumentation offered by this provider  through  DTrace.  Refer  to  the
       Solaris	Dynamic  Tracing  Guide  for  a  description  of the public documented interfaces available for the DTrace facility and the probes
       offered by the lockstat provider.

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdtrp			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Private			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dtrace(1M), lockstat(1M), attributes(5), dtrace(7D)

       Solaris Dynamic Tracing Guide

SunOS 5.11							    3 Sep 2003							      lockstat(7D)

fasttrap(7D)							      Devices							      fasttrap(7D)

NAME

       fasttrap - DTrace user instruction tracing provider

DESCRIPTION

       The  fasttrap  driver  is a DTrace dynamic tracing provider that performs dynamic instrumentation of arbitrary instructions in Solaris pro-
       cesses. The fasttrap driver implements the DTrace fasttrap and pid providers.

       The fasttrap driver is not a public interface and you access instrumentation offered by this provider through DTrace. Refer to the  Solaris
       Dynamic Tracing Guide for a description of the public documented interfaces available for the DTrace facility and the probes offered by the
       fasttrap provider.

SPARC ONLY

       The fasttrap provider provides a DTrace probe that fires each time a user process executes an instruction. The pid provider allows for  the
       dynamic	creation  of  DTrace  probes  corresponding  to  instruction locations inside any user process specified using a process ID and an
       instruction address or symbol name. Together these providers permit DTrace users to perform instrumentation of Solaris user  processes  and
       to  trace  the  interactions  between  processes  and the operating system. See the chapter entitled "User Process Tracing"  in the Solaris
       Dynamic Tracing Guide for information on how to use these providers to instrument processes.

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdtrp			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Private			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dtrace(1M), attributes(5), dtrace(7D)

       Solaris Dynamic Tracing Guide

SunOS 5.11							    4 Sep 2003							      fasttrap(7D)