Probing Database Applications with DTrace

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11-20-2009

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Probing Database Applications with DTrace

Embedded probes have several advantages, and this session explains what they are and shows how to add probes to applications and use them to solve performance problems, with a case study from the MySQL database and PostgreSQL. CommunityOne, San Francisco, June 2009.

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LEARN ABOUT OPENSOLARIS

sdt

sdt(7D) 							      Devices								   sdt(7D)

NAME

       sdt - DTrace statically defined tracing provider

DESCRIPTION

       The  sdt  driver  is a DTrace dynamic tracing provider that performs dynamic instrumentation at statically-defined locations in the Solaris
       kernel.

       The sdt provider allows kernel developers to explicitly create probes at formally designated locations in the operating system  kernel  and
       loadable modules, allowing the implementor to consciously choose the points in their code that are desired probe points, and to convey some
       semantic knowledge about that point with the choice of probe name and a relevant set of arguments.

       The sdt 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
       sdt 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), attributes(5), dtrace(7D)

       Solaris Dynamic Tracing Guide

SunOS 5.11							    4 Sep 2003								   sdt(7D)

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