Last change
on this file since 984 was
134,
checked in by kane, 14 years ago
|
add multi write buffer in cc_xcache_v4
|
File size:
1.9 KB
|
Line | |
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1 | /*****************************************************/ |
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2 | /* Various timer routines. */ |
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3 | /* Al Aburto, aburto@nosc.mil, 18 Feb 1997 */ |
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4 | /* */ |
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5 | /* t = dtime() outputs the current time in seconds. */ |
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6 | /* Use CAUTION as some of these routines will mess */ |
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7 | /* up when timing across the hour mark!!! */ |
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8 | /* */ |
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9 | /* For timing I use the 'user' time whenever */ |
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10 | /* possible. Using 'user+sys' time is a separate */ |
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11 | /* issue. */ |
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12 | /* */ |
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13 | /* Example Usage: */ |
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14 | /* [timer options added here] */ |
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15 | /* main() */ |
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16 | /* { */ |
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17 | /* double starttime,benchtime,dtime(); */ |
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18 | /* */ |
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19 | /* starttime = dtime(); */ |
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20 | /* [routine to time] */ |
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21 | /* benchtime = dtime() - starttime; */ |
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22 | /* } */ |
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23 | /* */ |
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24 | /* [timer code below added here] */ |
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25 | /*****************************************************/ |
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26 | |
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27 | /*********************************/ |
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28 | /* Timer code. */ |
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29 | /*********************************/ |
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30 | |
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31 | #include "dhry.h" |
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32 | #include "system.h" |
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33 | |
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34 | /***************************************************/ |
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35 | /* dtime(). */ |
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36 | /***************************************************/ |
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37 | #ifdef HAVE_DOUBLE |
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38 | # ifndef MHZ |
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39 | # define MHZ (1000000.0) |
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40 | # endif //!MHZ |
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41 | |
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42 | # ifndef FRQ |
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43 | # define FRQ (1*MHZ) |
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44 | # endif //!FRQ |
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45 | #endif |
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46 | |
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47 | DOUBLE dtime() |
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48 | { |
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49 | DOUBLE q; |
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50 | |
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51 | #ifdef HAVE_DOUBLE |
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52 | q = (DOUBLE)(cpu_cycles())/(DOUBLE)FRQ; |
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53 | #else |
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54 | q = (DOUBLE)(cpu_cycles()); |
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55 | #endif |
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56 | |
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57 | return (q); |
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58 | } |
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