[dtrace-discuss] How do I unroll an aggregation?

[Ian Matchett]

How do I unroll an aggregation?

I want to printout  @Io[R,], at Io[W,] , @Size[R,], at Size[W,] and 
@Time[R,], at Time[W,] all on the same line.
1 line per file that I am monitoring?

How do I unroll the values out of the aggregation?

{

self->rw="R"
or
self->rw="W";

self->vpath="/full/path/name/to/file/*";

         @Size[self->rw, self->vpath]=sum( self->size );
         @Io[self->rw, self->vpath]=count();
         @Time[self->rw, self->vpath]=avg( timestamp-self->start );
}



profile:::tick-TIMEsec
{
normalize( @Size, (1024 * TIME ));
normalize( @Io, TIME );
normalize( @Time, 1000);
printf("  r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  w  b device\n");
printa(    @Size );
printa(    @Io );
printa(    @Time );
clear(     @Size );
clear(     @Io );
clear(     @Time );

}

-- 
Ian Matchett Sun Microsystems
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