diff options
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 7a4c4dcf0bfe..d16fa8e1cdbf 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3835,6 +3835,7 @@ static const char readme_msg[] = " hist trigger\t- If set, event hits are aggregated into a hash table\n" "\t Format: hist:keys=<field1[,field2,...]>\n" "\t [:values=<field1[,field2,...]>]\n" + "\t [:sort=<field1[,field2,...]>]\n" "\t [:size=#entries]\n" "\t [if <filter>]\n\n" "\t When a matching event is hit, an entry is added to a hash\n" @@ -3843,7 +3844,10 @@ static const char readme_msg[] = "\t correspond to fields in the event's format description. Keys\n" "\t can be any field. Compound keys consisting of up to two\n" "\t fields can be specified by the 'keys' keyword. Values must\n" - "\t correspond to numeric fields. The 'size' parameter can be\n" + "\t correspond to numeric fields. Sort keys consisting of up to\n" + "\t two fields can be specified using the 'sort' keyword. The\n" + "\t sort direction can be modified by appending '.descending' or\n" + "\t '.ascending' to a sort field. The 'size' parameter can be\n" "\t used to specify more or fewer than the default 2048 entries\n" "\t for the hashtable size.\n\n" "\t Reading the 'hist' file for the event will dump the hash\n" |
