I creat a simply heap table as following,and then insert 10,000 records to it, the INSERT action consume almost 2 minutes.
create table temp_test(Corp_ID varchar(8) not null,
Corp_num varchar(8) not null)

Adaptive Server Enterprise/12.5.4/EBF 13396/P/x86_64/Enterprise Linux/ase1254/2006/64-bit/OPT/Sat May 20 00:15:42 2006
================================================== =============================
Sybase Adaptive Server Enterprise System Performance Report
================================================== =============================

Server Version: Adaptive Server Enterprise/12.5.4/EBF 13396/P/x86_64/Ent
Run Date: Jun 16, 2012
Sampling Started at: Jun 16, 2012 00:03:03
Sampling Ended at: Jun 16, 2012 00:04:03
Sample Interval: 00:01:00
Sample Mode: Reset Counters

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Kernel Utilization
------------------

Your Runnable Process Search Count is set to 2000
and I/O Polling Process Count is set to 10

Engine Busy Utilization CPU Busy I/O Busy Idle
------------------------ -------- -------- --------
Engine 0 0.0 % 0.0 % 100.0 %
Engine 1 0.0 % 0.8 % 99.2 %
Engine 2 0.0 % 0.2 % 99.8 %
Engine 3 0.0 % 0.2 % 99.8 %
Engine 4 0.5 % 0.7 % 98.8 %
Engine 5 0.0 % 0.0 % 100.0 %
Engine 6 0.0 % 0.0 % 100.0 %
Engine 7 0.0 % 0.0 % 100.0 %
Engine 8 0.0 % 0.0 % 100.0 %
Engine 9 0.0 % 0.0 % 100.0 %
Engine 10 0.0 % 0.0 % 100.0 %
Engine 11 0.0 % 0.0 % 100.0 %
------------------------ -------- -------- --------
Summary Total 0.5 % 1.8 % 1197.7 %
Average 0.0 % 0.2 % 99.8 %

CPU Yields by Engine per sec per xact count % of total
------------------------- ------------ ------------ ---------- ----------
Engine 0 60.7 62.8 3641 4.7 %
Engine 1 59.6 61.6 3573 4.6 %
Engine 2 220.0 227.6 13200 17.2 %
Engine 3 462.4 478.3 27741 36.1 %
Engine 4 59.4 61.4 3562 4.6 %
Engine 5 60.1 62.1 3603 4.7 %
Engine 6 60.1 62.1 3604 4.7 %
Engine 7 60.0 62.1 3602 4.7 %
Engine 8 60.0 62.1 3602 4.7 %
Engine 9 60.1 62.2 3605 4.7 %
Engine 10 60.1 62.2 3605 4.7 %
Engine 11 60.1 62.2 3606 4.7 %
------------------------- ------------ ------------ ----------
Total CPU Yields 1282.4 1326.6 76944

Network Checks
Non-Blocking 28420.6 29400.6 1705234 95.7 %
Blocking 1282.2 1326.4 76931 4.3 %
------------------------- ------------ ------------ ----------
Total Network I/O Checks 29702.8 30727.0 1782165
Avg Net I/Os per Check n/a n/a 0.00019 n/a

Disk I/O Checks
Total Disk I/O Checks 29723.8 30748.8 1783430 n/a
Checks Returning I/O 10876.8 11251.8 652607 36.6 %
Avg Disk I/Os Returned n/a n/a 0.00029 n/a

Tuning Recommendations for Kernel Utilization
---------------------------------------------
- Consider decreasing the 'runnable process search count'
configuration parameter if you require the CPU's on
the machine to be used for other applications.


Disk I/O Management
-------------------

Max Outstanding I/Os per sec per xact count % of total
------------------------- ------------ ------------ ---------- ----------
Server n/a n/a 7 n/a
Engine 0 n/a n/a 0 n/a
Engine 1 n/a n/a 7 n/a
Engine 2 n/a n/a 1 n/a
Engine 3 n/a n/a 1 n/a
Engine 4 n/a n/a 1 n/a
Engine 5 n/a n/a 0 n/a
Engine 6 n/a n/a 0 n/a
Engine 7 n/a n/a 0 n/a
Engine 8 n/a n/a 0 n/a
Engine 9 n/a n/a 0 n/a
Engine 10 n/a n/a 0 n/a
Engine 11 n/a n/a 0 n/a


I/Os Delayed by
Disk I/O Structures n/a n/a 0 n/a
Server Config Limit n/a n/a 0 n/a
Engine Config Limit n/a n/a 0 n/a
Operating System Limit n/a n/a 0 n/a