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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 Tapes |
This is an automatic "excavation" of a thematic subset of
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top - metrics - downloadIndex: B T
Length: 2412 (0x96c)
Types: TextFile
Names: »B«
└─⟦180fe333a⟧ Bits:30000405 8mm tape, Rational 1000, SW CATALOG, 10_20_0
└─⟦180fe333a⟧ Bits:30000537 8mm tape, Rational 1000, SW Catalog 10_20_0
└─⟦5cb1d1d7f⟧ »DATA«
└─⟦3b1ee7bd8⟧
└─⟦this⟧
-- PERFORMANCE MEASUREMENT : function GET timing ( INTERNAL )
with Text_Io;
use Text_Io;
with Remote_Global;
use Remote_Global; -- control optimization
with Iteration; -- obtain stable measurement
with Piwg_Io; -- output results
procedure G000005 is -- main procedure to execute
Cpu_Time : Duration; -- CPU time for one feature execution
Wall_Time : Duration; -- WALL time for one feature execution
Check_Times : constant := 10; -- inside loop count and check
Iteration_Count : Integer; -- set and varied by ITERATION package
Stable : Boolean; -- true when measurement stable
Scratch_String : String (1 .. 6) := "100 ";
Scratch_Length : Natural;
Scratch_Value : Integer;
package Int_Io is new Integer_Io (Integer);
use Int_Io;
begin
Iteration.Start_Control; -- dummy to bring in pages on some machines
delay 0.5; -- wait for stable enviornment on some machines
Iteration.Initialize (Iteration_Count);
loop -- until stable measurement, ITERATION_COUNT increases each time
--
-- Control loop
--
Iteration.Start_Control;
for J in 1 .. Iteration_Count loop
Global := 0;
for Inside_Loop in 1 .. Check_Times loop
Global := Global + A_One;
Remote;
Put (Scratch_String, Inside_Loop);
end loop;
end loop;
Iteration.Stop_Control (Global, Check_Times);
--
-- Test loop
--
-- establish the time for the GET pocdedure on an integer
Iteration.Start_Test;
for J in 1 .. Iteration_Count loop
Global := 0;
for Inside_Loop in 1 .. Check_Times loop
Global := Global + A_One;
Remote;
Put (Scratch_String, Inside_Loop);
Get (Scratch_String, Scratch_Value, Scratch_Length);
end loop;
end loop;
Iteration.Stop_Test (Global, Check_Times);
Iteration.Test_Stable (Iteration_Count, Stable);
exit when Stable;
end loop;
--
Iteration.Feature_Times (Cpu_Time, Wall_Time);
--
-- Printout
--
Piwg_Io.Piwg_Output
("G000005", "Input/Output", Cpu_Time, Wall_Time, Iteration_Count,
" TEXT_IO.GET an integer from a local string, timing measurement",
" use TEXT_IO.PUT to convert 1..100 to a string ",
" then use TEXT_IO.GET to get the number back");
end G000005;