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Tables accompanying the article “The Lisa 2: Apple’s ablest computer,” published in Byte, issue 12/1984, pp. A108, A114.

Table 1: Lisa 2/5 and 2/10 performance figures:

Empty LisaWrite file37,000-byte LisaWrite file Empty LisaDraw file40,000-byte LisaDraw file
Measured times in seconds 2/52/10Ratio
2/10
to
2/5
2/52/10Ratio
2/10
to
2/5
2/52/10Ratio
2/10
to
2/5
2/52/10Ratio
2/10
to
2/5
 
Test run immediately after start-up
Open first time29250.933280.834270.898900.9
Save and put away15201.363510.814161.113141.1
Open second time430.8760.9650.869661.0
Set aside630.5760.9650.8881.0
 
Test run after two other applications are active
Open first time37290.839310.836260.7100860.9
Save and put away16161.052511.010101.013120.9
Open second time540.8760.9750.768701.0
Set aside640.7771.0650.8881.0
 
Save a duplicate12141.216201.21090.918130.7
Copy disk to hard disk 331.017150.9430.816150.9
Copy hard disk to disk430.818201.1441.020201.0

Table 2: Pascal I/O benchmark results (time in seconds):

Test #Description2/52/10Ratio
2/10
to
2/5
1Write 1024 text lines of 8 bytes each (WRITELN)11.011.81.1
2Read 1024 text lines of 8 bytes each (READLN)6.56.41.0
3Write 8 text lines of 1024 bytes each (WRITELN)8.09.31.2
4Read 1024 text lines of 8 bytes each (READLN)4.85.01.0
5Write 1 text line of 8192 bytes (WRITELN)8.19.01.1
6Read 1 text line of 8192 bytes (READLN)5.86.21.1
7Write 8192 bytes in a single block (BLOCKWRITE)1.52.31.5
8Read 8192 bytes in a single block (BLOCKREAD)1.41.41.0
9Write 100 records of 100 bytes each (sequential PUT)7.37.81.1
10Read 100 records of 100 bytes each (sequential GET)1.41.41.0
11Read 100 random records of 100 bytes each (random GET)5.87.41.3

Page added on 22nd January 2005.

Copyright © 2002-2006 Marcin Wichary, unless stated otherwise.