summaryrefslogtreecommitdiff
path: root/docs
diff options
context:
space:
mode:
authorMichal Schmidt <mschmidt@redhat.com>2014-12-17 15:07:25 +0100
committerMichal Schmidt <mschmidt@redhat.com>2014-12-18 14:35:30 +0100
commit7943f42275025e1b6642b580b19b24dfab8dee61 (patch)
treede4b31ad2a1996ba062c164c8f5197e1f2975e10 /docs
parent6e693b42dcb0b332364b0414107826826925c49f (diff)
journal: optimize iteration by returning previously found candidate entry
In next_beyond_location() when the JournalFile's location type is LOCATION_SEEK, it means there's nothing to do, because we already have the location of the candidate entry. Do an early return. Note that now next_beyond_location() does not anymore guarantee on return that the entry is mapped, but previous patches made sure the caller does not care. This optimization is at least as good as "journal: optimize iteration: skip files that cannot improve current candidate entry" was. Timing results on my workstation, using: $ time ./journalctl -q --since=2014-06-01 --until=2014-07-01 > /dev/null Before "Revert "journal: optimize iteration: skip files that cannot improve current candidate entry": real 0m5.349s user 0m5.166s sys 0m0.181s Now: real 0m3.901s user 0m3.724s sys 0m0.176s
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions