Comparison of two schemes for testing php+mysql paging mechanism

Hardware environment: PIII550,128M,15.2G
Software Environment: Win98+apache+php4+mysql

Programme I:
1. For the first query, use the Select COUNT (1) from tab where condition to obtain the number of records that meet the criteria $rows
2. Through the front page $page, each page records the number $RPP retrieve the record set
SELECT * from tab where condition limit ($page-1) * $RPP, $RPP
3. Displays all records that return the recordset.
4. Transfer $rows to a later page when the page is transferred.

Programme II:
1. Retrieve the recordset that satisfies the condition
SELECT * from tab where condition
2. Move the pointer to ($page-1) * $RPP
3. Display $RPP Record

============+====+===============================+======+=====+==
Record number | scheme | Times 1 2 3 4 5 6 7 8 9 0| Average | Average | Efficiency ratio
============+====+===============================+======+====+===
|     | first Page 2,1,1,2,1,1,2,2,1,2|1.3 | |
| One +-------------------------------+------+ 1.6 |
10,000 Records when |     | other Pages 2,2,2,3,1,1,2,2,2,2|1.9 | | 4.8125
+----+-------------------- ------------+------+------+
| Two | each page 7,7,7,8,8,8,8,8,8,8 |7.7 | 7.7 |
===========+====+============================= =====+=====+======+
|      | first Page 25,2,3,2,21,16,9,20,9,9|1.6 | |
| One +-----------------------------------+-----+ 7.5 |
20,000 Records when |     | other pages 6,6,2,2,4,4,4,1,2,2 |3.3 | | 6.6533
+- --+----------------------------------+------+------+
| Two | each page 54,50,37,46,49,47,52,50,55,59|49.9 | 49.9 |
============+====+==================================+======+======+====
| | first page 34,35,24,21,21,21,22,22,21,21| 25.2 |
| One +----------------------------------+------+25.95|
30,000 Records when | | other pages 14,27,40,39,37,33,22,30,14,11|    26.7 | | 3.3372
+----+----------------------------------+------+------+
| Two | each page 92,90,83,78,93,83,91,79,89,88 | 86.6 | 86.6 |
============+====+==================================+======+======+===