Commits
Tony Jones committed 5f997580e8b
apparmor: Fix network performance issue in aa_label_sk_perm
The netperf benchmark shows a 5.73% reduction in throughput for
small (64 byte) transfers by unconfined tasks.
DEFINE_AUDIT_SK() in aa_label_sk_perm() should not be performed
unconditionally, rather only when the label is confined.
netperf-tcp
56974a6fc^ 56974a6fc
Min 64 563.48 ( 0.00%) 531.17 ( -5.73%)
Min 128 1056.92 ( 0.00%) 999.44 ( -5.44%)
Min 256 1945.95 ( 0.00%) 1867.97 ( -4.01%)
Min 1024 6761.40 ( 0.00%) 6364.23 ( -5.87%)
Min 2048 11110.53 ( 0.00%) 10606.20 ( -4.54%)
Min 3312 13692.67 ( 0.00%) 13158.41 ( -3.90%)
Min 4096 14926.29 ( 0.00%) 14457.46 ( -3.14%)
Min 8192 18399.34 ( 0.00%) 18091.65 ( -1.67%)
Min 16384 21384.13 ( 0.00%) 21158.05 ( -1.06%)
Hmean 64 564.96 ( 0.00%) 534.38 ( -5.41%)
Hmean 128 1064.42 ( 0.00%) 1010.12 ( -5.10%)
Hmean 256 1965.85 ( 0.00%) 1879.16 ( -4.41%)
Hmean 1024 6839.77 ( 0.00%) 6478.70 ( -5.28%)
Hmean 2048 11154.80 ( 0.00%) 10671.13 ( -4.34%)
Hmean 3312 13838.12 ( 0.00%) 13249.01 ( -4.26%)
Hmean 4096 15009.99 ( 0.00%) 14561.36 ( -2.99%)
Hmean 8192 18975.57 ( 0.00%) 18326.54 ( -3.42%)
Hmean 16384 21440.44 ( 0.00%) 21324.59 ( -0.54%)
Stddev 64 1.24 ( 0.00%) 2.85 (-130.64%)
Stddev 128 4.51 ( 0.00%) 6.53 ( -44.84%)
Stddev 256 11.67 ( 0.00%) 8.50 ( 27.16%)
Stddev 1024 48.33 ( 0.00%) 75.07 ( -55.34%)
Stddev 2048 54.82 ( 0.00%) 65.16 ( -18.86%)
Stddev 3312 153.57 ( 0.00%) 56.29 ( 63.35%)
Stddev 4096 100.25 ( 0.00%) 88.50 ( 11.72%)
Stddev 8192 358.13 ( 0.00%) 169.99 ( 52.54%)
Stddev 16384 43.99 ( 0.00%) 141.82 (-222.39%)
Signed-off-by: Tony Jones <tonyj@suse.de>
Fixes: 56974a6fcfef ("apparmor: add base infastructure for socket
mediation")
Signed-off-by: John Johansen <john.johansen@canonical.com>