whatsnew-nov11,1999

Linux磁盘测试的源代码,测试磁盘的读写性能

November 11th, 1999 Robin Miller

	The following changes were made to 'dt' Version 12.10:

     o	Support for logging diagnostic message to the event logger.
	This, of course, only applies to Tru64 Unix.  You must be root
	in order to log events to the binary error logger.  This support
	can be enabled one of two ways:
	- "enable=diag" option.
	- defining the DT_LOG_DIAG environment variable.

	If you aren't running as root, nothing gets logged, and no errors
	are reported by 'dt' (unless you turn on debug).

	Like other exercisers, Q-VET/diskx/tapex, the start and finish of
	each test is logged, as well as any errors encountered.

     o	Fixed a problem in the AIO module when testing with the IOT disc,
	and the CD-ROM block size was 2048.  The block size on the IOT disc
	is always 512 bytes.  This only effected Tru64 Unix.

     o	Fixed minor problem where "dispose=delete" wasn't parsed correctly.

     o	Fixed problem with setting stderr stream buffered (garbled output).

	Within Compaq, the updated 'dt' kits are located @ URL:

		http://www.zk3.dec.com/~rmiller/dt.html

	External to Compaq, you can obtain 'dt' kits from URL:

		http://www.bit-net.com/~rmiller/dt.html

Cheers,
Robin
================================================================================

tru64% dia -R -o full
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******************************** ENTRY    2 ******************************** 


Logging OS                        2. Digital UNIX 
System Architecture               2. Alpha 
Event sequence number          1485. 
Timestamp of occurrence              11-NOV-1999 16:13:22   
Host name                            tru64 

System type register      x0000001B  AlphaServer 800 or 1000A 
Number of CPUs (mpnum)    x00000001 
CPU logging event (mperr) x00000000 

Event validity                    1. O/S claims event is valid 
Event severity                    5. Low Priority 
Entry type                      350. Diagnostic ASCII Message Type 

SWI Minor class                   9. ASCII Message 
SWI Minor sub class               5. Diagnostic 

ASCII Message                        Finished: dt if=/dev/rrz12c bs=4k count=3 
                                     position=1m  

******************************** ENTRY    3 ******************************** 


Logging OS                        2. Digital UNIX 
System Architecture               2. Alpha 
Event sequence number          1484. 
Timestamp of occurrence              11-NOV-1999 16:13:22   
Host name                            tru64 

System type register      x0000001B  AlphaServer 800 or 1000A 
Number of CPUs (mpnum)    x00000001 
CPU logging event (mperr) x00000000 

Event validity                    1. O/S claims event is valid 
Event severity                    5. Low Priority 
Entry type                      350. Diagnostic ASCII Message Type 

SWI Minor class                   9. ASCII Message 
SWI Minor sub class               5. Diagnostic 

ASCII Message 
    dt: Data compare error at byte 0 in record number 1 
    dt: Data expected = 0x39, data found = 0, byte count = 4096 



******************************** ENTRY    4 ******************************** 


Logging OS                        2. Digital UNIX 
System Architecture               2. Alpha 
Event sequence number          1483. 
Timestamp of occurrence              11-NOV-1999 16:13:22   
Host name                            tru64 

System type register      x0000001B  AlphaServer 800 or 1000A 
Number of CPUs (mpnum)    x00000001 
CPU logging event (mperr) x00000000 

Event validity                    1. O/S claims event is valid 
Event severity                    5. Low Priority 
Entry type                      350. Diagnostic ASCII Message Type 

SWI Minor class                   9. ASCII Message 
SWI Minor sub class               5. Diagnostic 

ASCII Message                        dt: Relative block number where the error 
                                     occcured is 512 

******************************** ENTRY    5 ******************************** 


Logging OS                        2. Digital UNIX 
System Architecture               2. Alpha 
Event sequence number          1482. 
Timestamp of occurrence              11-NOV-1999 16:13:21   
Host name                            tru64 

System type register      x0000001B  AlphaServer 800 or 1000A 
Number of CPUs (mpnum)    x00000001 
CPU logging event (mperr) x00000000 

Event validity                    1. O/S claims event is valid 
Event severity                    5. Low Priority 
Entry type                      350. Diagnostic ASCII Message Type 

SWI Minor class                   9. ASCII Message 
SWI Minor sub class               5. Diagnostic 

ASCII Message                        Starting: dt if=/dev/rrz12c bs=4k count=3 
                                     position=1m  
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