Thanks BrowserUK for your response:
1>I am getting the warning as "Warning: the specifed memory size is be
+ing reduced to the available paging memory".The paging file size of t
+his system is set to 12284 MB.(Even when I run this on w2k8 64 bit 12
+GB RAM system)(Let me know if I need to change the paging file size)

2>The output of sort which you have mentioned and output of my code di
+ffers when the date and time is same.With the sort option you provide
+d, the entire line is considered for sorting and hence the text lines
+ after the date and time is also getting sorted(which I dont want tex
+t lines to get sorted when data and time is same).Is there a way to d
+o it? I have attached the output of both sorts

Your sort:
2012/12/13 @ 19:00:27,792 @    ,,        at com.
2012/12/13 @ 19:00:27,792 @    ,,        at com.
2012/12/13 @ 19:00:27,792 @    ,,        at com.
2012/12/13 @ 19:00:27,792 @    ,,        at java.lang.reflect.Method.i
+nvoke(Method.java:597)
2012/12/13 @ 19:00:27,792 @    ,,        at java.lang.Thread.run(Threa
+d.java:662)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.reflect.GeneratedMetho
+dAccessor1387.invoke(Unknown Source)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.reflect.DelegatingMeth
+odAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.rmi.server.UnicastServ
+erRef.dispatch(UnicastServerRef.java:305)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.rmi.transport.Transpor
+t$1.run(Transport.java:159)


My sort:

2012/12/13 @ 19:00:27,792 @    ,,        at com.
2012/12/13 @ 19:00:27,792 @    ,,        at com.
2012/12/13 @ 19:00:27,792 @    ,,        at com.
2012/12/13 @ 19:00:27,792 @    ,,        at sun.reflect.GeneratedMetho
+dAccessor1387.invoke(Unknown Source)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.reflect.DelegatingMeth
+odAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2012/12/13 @ 19:00:27,792 @    ,,        at java.lang.reflect.Method.i
+nvoke(Method.java:597)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.rmi.server.UnicastServ
+erRef.dispatch(UnicastServerRef.java:305)
2012/12/13 @ 19:00:27,792 @    ,,        at sun.rmi.transport.Transpor
+t$1.run(Transport.java:159)
2012/12/13 @ 19:00:27,792 @    ,,        at java.lang.Thread.run(Threa
+d.java:662)

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In reply to Re^4: external sort performance improved? by rkshyam
in thread external sort performance improved? by rkshyam

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