----- Original Message ----- > While analyzing vmcores from customers sometimes we want > to filter tasks by scheduling policy, for instance, to identify > if customer runs realtime tasks. Doing this via foreach grepping > and then feeding back pointers to task_struct and grepping it again > is very slow, especially if customer runs thousands of tasks. > > So, let's add another option for ps to filter tasks by scheduling > policy. Hi Oleksandr, Nice feature -- queued for crash-7.2.1: https://github.com/crash-utility/crash/commit/4550bf32a5ec1d9b7b6d5099aaee6e8e363a7827 Thanks, Dave > > Changes in v4: > > * apply Dave's modifications: > * throw fatal error instead of defaulting to NORMAL policy > * re-word and re-structure help entry > * relocate task_struct_policy members to the end of structs > * show task_struct_policy info in "help -o" > * replace strdup/calloc/free with wrappers > * allow using hex values to specify policy > > Changes in v3: > > * fix snprintf format specifier for ulong > * fix snprintf block indentation > * add one more comma to help output > > Changes in v2: > > * handle task_struct.policy member size correctly > * accept comma-separated list of policies > instead of requiring multiple -y arguments > * policy can be specified as a number too > * policy name is case-insensitive now > * warn about incorrect policy name > * fix help message formatting > * mark upper_case() source string pointer as a const > (minor cleanup) > > Oleksandr Natalenko (1): > task: also filter ps output by ->policy > > defs.h | 15 ++++++- > help.c | 14 +++++- > symbols.c | 3 ++ > task.c | 143 > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--- > tools.c | 5 ++- > 5 files changed, 170 insertions(+), 10 deletions(-) > > -- > 2.14.2 > > -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
