Solution : https://service.sap.com/sap/support/notes/139286 (SAP Service marketplace login required)
Key words :
user <sid>adm start -> settings -> control panel -> system -> environment-> user variables, hkey_local_machine\software\sap\<sid>\environmententer, registry editor start -> run ->, user <sid>adm, sequential dbsl trace logs, 'database support layer' = dbsl, affects disp+work processes, dbs/db6/dbsl_cstrace =0 activating, performance-relevant sql statements, set older variable db6_dbsl_stat
Related Notes :
513133 | DB6: SMP save time function |
124268 | DB6: the newest Explain functions for 3.0F - 4.6B |
31707 | DB6: DBSL trace for performance/error analysis |