nid missing from stacktrace and tid is decimal


 
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Operating Systems Linux nid missing from stacktrace and tid is decimal
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Old 01-26-2012
nid missing from stacktrace and tid is decimal

To identify which java thread was hogging the cpu on linux I used to have to convert the lightweight thread id from a ps command (ps -eLo pid,ppid,tid,pcpu,comm | grep <PID>) to a hex value, take a thread dump and find the nid with the same hex value. I tried that recently on Enterprise Linux Enterprise Linux Server release 5.2 and SUSE Linux Enterprise Server 10 (x86_64) and the tid from the ps output and the tid in the thread dump were the same decimal value and the nid value was missing. Can anyone tell me when this changed e.g. kernel version?
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PAPI_detach(3)							       PAPI							    PAPI_detach(3)

NAME
PAPI_detach - Detach PAPI event set from previously specified thread id and restore to executing thread. SYNOPSIS
Detailed Description @par C Interface: int PAPI_detach( int EventSet, unsigned long tid ); PAPI_detach is a wrapper function that calls PAPI_set_opt to allow PAPI to monitor performance counts on a thread other than the one currently executing. This is sometimes referred to as third party monitoring. PAPI_attach connects the specified EventSet to the specifed thread; PAPI_detach breaks that connection and restores the EventSet to the original executing thread. @param EventSet An integer handle for a PAPI EventSet as created by PAPI_create_eventset. @param tid A thread id as obtained from, for example, PAPI_list_threads or PAPI_thread_id. @retval PAPI_ECMP This feature is unsupported on this component. @retval PAPI_EINVAL One or more of the arguments is invalid. @retval PAPI_ENOEVST The event set specified does not exist. @retval PAPI_EISRUN The event set is currently counting events. @par Examples: * int EventSet = PAPI_NULL; * unsigned long pid; * pid = fork( ); * if ( pid <= 0 ) * exit( 1 ); * if ( PAPI_create_eventset( &EventSet ) != PAPI_OK ) * exit( 1 ); * // Add Total Instructions Executed to our EventSet * if ( PAPI_add_event( EventSet, PAPI_TOT_INS ) != PAPI_OK ) * exit( 1 ); * // Attach this EventSet to the forked process * if ( PAPI_attach( EventSet, pid ) != PAPI_OK ) * exit( 1 ); * See Also: PAPI_set_opt PAPI_list_threads PAPI_thread_id PAPI_thread_init Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_detach(3)