fpuinfo Provider

The {{fpuinfo}} provider makes available probes that correspond to the simulation of floating-point instructions on SPARC microprocessors. While most floating-point instructions are executed in hardware, some floating-point operations trap into the operating system for simulation. The conditions under which floating-point operations require operating system simulation are specific to a microprocessor implementation. The operations that require simulation are rare. However, if an application uses one of these operations frequently, the effect on performance could be severe. The {{fpuinfo}} provider enables rapid investigation of floating-point simulation seen through either [{{kstat}}(1M)|http://docs.sun.com/doc/819-2240/kstat-1m?a=view] and the {{fpu_info}} kernel statistic or [{{trapstat}}(1M)|http://docs.sun.com/doc/819-2240/trapstat-1m?a=view] and the {{fp-xcp-other}} trap.

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|{{fpu_sim_fitod}}|Probe that fires whenever an {{fitod}} instruction is simulated by the kernel.|
|{{fpu_sim_fitos}}|Probe that fires whenever an {{fitos}} instruction is simulated by the kernel.|
|{{fpu_sim_fxtoq}}|Probe that fires whenever an {{fxtoq}} instruction is simulated by the kernel.|
|{{fpu_sim_fxtod}}|Probe that fires whenever an {{fxtod}} instruction is simulated by the kernel.|
|{{fpu_sim_fxtos}}|Probe that fires whenever an {{fxtos}} instruction is simulated by the kernel.|
|{{fpu_sim_fqtox}}|Probe that fires whenever an {{fqtox}} instruction is simulated by the kernel.|
|{{fpu_sim_fdtox}}|Probe that fires whenever an {{fdtox}} instruction is simulated by the kernel.|
|{{fpu_sim_fstox}}|Probe that fires whenever an {{fstox}} instruction is simulated by the kernel.|
|{{fpu_sim_fqtoi}}|Probe that fires whenever an {{fqtoi}} instruction is simulated by the kernel.|
|{{fpu_sim_fdtoi}}|Probe that fires whenever an {{fdtoi}} instruction is simulated by the kernel.|
|{{fpu_sim_fstoi}}|Probe that fires whenever an {{fstoi}} instruction is simulated by the kernel.|
|{{fpu_sim_fsqrtq}}|Probe that fires whenever an {{fsqrtq}} instruction is simulated by the kernel.|
|{{fpu_sim_fsqrtd}}|Probe that fires whenever an {{fsqrtd}} instruction is simulated by the kernel.|
|{{fpu_sim_fsqrts}}|Probe that fires whenever an {{fsqrts}} instruction is simulated by the kernel.|
|{{fpu_sim_fcmpeq}}|Probe that fires whenever an {{fcmpeq}} instruction is simulated by the kernel.|
|{{fpu_sim_fcmped}}|Probe that fires whenever an {{fcmped}} instruction is simulated by the kernel.|
|{{fpu_sim_fcmpes}}|Probe that fires whenever an {{fcmpes}} instruction is simulated by the kernel.|
|{{fpu_sim_fcmpq}}|Probe that fires whenever an {{fcmpq}} instruction is simulated by the kernel.|
|{{fpu_sim_fcmpd}}|Probe that fires whenever an {{fcmpd}} instruction is simulated by the kernel.|
|{{fpu_sim_fcmps}}|Probe that fires whenever an {{fcmps}} instruction is simulated by the kernel.|
|{{fpu_sim_fdivq}}|Probe that fires whenever an {{fdivq}} instruction is simulated by the kernel.|
|{{fpu_sim_fdivd}}|Probe that fires whenever an {{fdivd}} instruction is simulated by the kernel.|
|{{fpu_sim_fdivs}}|Probe that fires whenever an {{fdivs}} instruction is simulated by the kernel.|
|{{fpu_sim_fdmulx}}|Probe that fires whenever an {{fdmulx}} instruction is simulated by the kernel.|
|{{fpu_sim_fsmuld}}|Probe that fires whenever an {{fsmuld}} instruction is simulated by the kernel.|
|{{fpu_sim_fmulq}}|Probe that fires whenever an {{fmulq}} instruction is simulated by the kernel.|
|{{fpu_sim_fmuld}}|Probe that fires whenever an {{fmuld}} instruction is simulated by the kernel.|
|{{fpu_sim_fmuls}}|Probe that fires whenever an {{fmuls}} instruction is simulated by the kernel.|
|{{fpu_sim_fsubq}}|Probe that fires whenever an {{fsubq}} instruction is simulated by the kernel.|
|{{fpu_sim_fsubd}}|Probe that fires whenever an {{fsubd}} instruction is simulated by the kernel.|
|{{fpu_sim_fsubs}}|Probe that fires whenever an {{fsubs}} instruction is simulated by the kernel.|
|{{fpu_sim_faddq}}|Probe that fires whenever an {{faddq}} instruction is simulated by the kernel.|
|{{fpu_sim_faddd}}|Probe that fires whenever an {{faddd}} instruction is simulated by the kernel.|
|{{fpu_sim_fadds}}|Probe that fires whenever an {{fadds}} instruction is simulated by the kernel.|
|{{fpu_sim_fnegd}}|Probe that fires whenever an {{fnegd}} instruction is simulated by the kernel.|
|{{fpu_sim_fnegq}}|Probe that fires whenever an {{fneqq}} instruction is simulated by the kernel.|
|{{fpu_sim_fnegs}}|Probe that fires whenever an {{fnegs}} instruction is simulated by the kernel.|
|{{fpu_sim_fabsd}}|Probe that fires whenever an {{fabsd}} instruction is simulated by the kernel.|
|{{fpu_sim_fabsq}}|Probe that fires whenever an {{fabsq}} instruction is simulated by the kernel.|
|{{fpu_sim_fabss}}|Probe that fires whenever an {{fabss}} instruction is simulated by the kernel.|
|{{fpu_sim_fmovd}}|Probe that fires whenever an {{fmovd}} instruction is simulated by the kernel.|
|{{fpu_sim_fmovq}}|Probe that fires whenever an {{fmovq}} instruction is simulated by the kernel.|
|{{fpu_sim_fmovs}}|Probe that fires whenever an {{fmovs}} instruction is simulated by the kernel.|
|{{fpu_sim_fmovr}}|Probe that fires whenever an {{fmovr}} instruction is simulated by the kernel.|
|{{fpu_sim_fmovcc}}|Probe that fires whenever an {{fmovcc}} instruction is simulated by the kernel.|

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h2. {anchor:GELSB} Arguments
There are no arguments to {{fpuinfo}} probes.

|Module|Private|Private|Unknown|
|Function|Private|Private|Unknown|
|Name|Evolving|Evolving|CPU|
|Arguments|Evolving|Evolving|CPU|
{excerpt:hidden=true}Converted by tech dogg's sgml2wiki on Tue 20 Nov 2007 at 9:24:12 PM{excerpt}