| 322 | } |
| 323 | |
| 324 | std::vector< StatData > |
| 325 | GpuStatTimer::getVariance( size_t id ) |
| 326 | { |
| 327 | std::vector< StatData > variance = getMean( id ); |
| 328 | |
| 329 | for( cl_uint v = 0; v < variance.size( ); ++v ) |
| 330 | { |
| 331 | double sum = 0; |
| 332 | for( cl_uint n = 0; n < timerData[ id ][ v ].size( ); ++n ) |
| 333 | { |
| 334 | cl_double diff = static_cast< cl_double >( timerData[ id ][ v ][ n ].deltaNanoSec ) - variance[ v ].doubleNanoSec; |
| 335 | diff *= diff; |
| 336 | sum += diff; |
| 337 | } |
| 338 | |
| 339 | variance[ v ].doubleNanoSec = sum / timerData[ id ][ v ].size( ); |
| 340 | } |
| 341 | |
| 342 | return variance; |
| 343 | } |
| 344 | |
| 345 | std::vector< StatData > |
| 346 | GpuStatTimer::getStdDev( size_t id ) |