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Re: ddd bad performance


From: lyman wang
Subject: Re: ddd bad performance
Date: Tue, 18 May 2004 19:05:35 +0800

list in gdb takes some time, but not so long as in ddd.

monitor tool show the memory increase dramatically when ddd run list. The total memory(512M) used up soon. But run list in gdb not take so much memory.

I also try to put the application to local unix file system. the Test result is the same. Is there some memory leak of this version ddd?

>From: Tim Mooney <address@hidden>
>To: DDD Users Mailing List <address@hidden>
>Subject: Re: ddd bad performance
>Date: Mon, 17 May 2004 12:29:06 -0500 (CDT)
>
>In regard to: Re: ddd bad performance, lyman wang said (at 4:06pm on
>May...:
>
>>Most of the time spend on ?amp;quot;list" operation.
>><- "(gdb) "
>>-> "list\n"
>><-
>>"25\t/*======================================================*/\n"
>>   "26\tint main(int argc, char* argv[])\n"
>>   "27\t{\n"
>>   "28\t\n"
>>   "29\tT_OASIS_HEADER\t\toasis_header;\n"
>>   "30\t\n"
>>   "31\t\t/*------------------*/\n"
>>   "32\t\t/* SIGSEGV redirect */\n"
>>   "33\t\t/*------------------*/\n"
>>   "34\t\tsignal(SIGSEGV,end_sigsegv);\n"
>><- "(gdb) "
>>-> "info line\n"
>><- "Line 34 of
>>\"/vobs/lead_telecom/telecom_simulation/mlight/src/mlight_main.c\"
>>starts
>>at address 0x7ca466 <main+6> and ends at 0x7ca478 <main+24>.\n"
>>  "\032\032/vobs/lead_telecom/telecom_simulation/mlight/src/mlight_main.c:34:695:b
>>eg:0x7ca466\n"
>
>First, what happens if you type
>
> gdb terminal_t
> list
>
>Does it take a long time?
>
>Does it still take a long time if you access it on a non-ClearCase
>filesystem?  I'm not familiar enough with CC to know what you need
>to
>do to get mlight_main.c "checked out", but if you get it onto a
>traditional UNIX filesystem, does it still take as long?
>
>Tim
>--
>Tim Mooney                              
>address@hidden
>Information Technology Services         (701) 231-1076 (Voice)
>Room 242-J6, IACC Building              (701) 231-8541 (Fax)
>North Dakota State University, Fargo, ND 58105-5164
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