samba.git/python/samba/emulate, branch talloc-2.3.1

traffic.py: avoid inefficient string concatenations

2019-09-24T12:22:44+00:00

Signed-off-by: Bjoern Jacke 
Reviewed-by: Andrew Bartlett

traffic_replay: Avoid DB full scans in LDAP searches

2019-07-24T02:24:27+00:00

When generating LDAP search traffic, a full DB scan can be very costly.
Avoiding full-scan LDAP searches means that we can run traffic_replay
against a 100K user DB and get some sane results.

Because the traffic_learner doesn't record the LDAP search filter at all,
the traffic_replay LDAP searches default to being full scans.
Doing full scans meant that the LDAP search was usually the first packet
type to exceed the max latency and fail the test. It could also skew
results for the other packet types by creating big demands on memory/CPU/
DB-lock-time.

It's hard to know for sure exactly what real-world LDAP searches will
look like, but let's assume full scan searches will be fairly rare.
In traffic-model files we've collected previously, some of the
attributes are fairly unique (e.g. pKIExtendedKeyUsage), and as there
are some LDAP queries specified in MS specs (such as MS-GPOL and
MS-WCCE), it allows us to infer what the search filter might be.

Signed-off-by: Tim Beale 
Reviewed-by: Andrew Bartlett

traffic replay: Store the instance id in the replay context

2019-07-24T02:24:27+00:00

Store the traffic runner instance id in the replay context.  Will be
used in subsequent commits.

Signed-off-by: Gary Lockyer 
Reviewed-by: Andrew Bartlett

traffic_replay: Make use of SCOPE_BASE explicit

2019-07-24T02:24:27+00:00

i.e. avoid hard-coded numbers.

Signed-off-by: Tim Beale 
Reviewed-by: Andrew Bartlett

traffic_replay: Store total conversations on the replay context

2019-07-24T02:24:27+00:00

This is useful info to know, and will be used in subsequent commits.

Signed-off-by: Tim Beale 
Reviewed-by: Andrew Bartlett

traffic: load dns query from file and write stats to file

2019-05-01T01:10:42+00:00

Signed-off-by: Joe Guo 
Reviewed-by: Andrew Bartlett 
Reviewed-by: Andreas Schneider 

Autobuild-User(master): Andrew Bartlett 
Autobuild-Date(master): Wed May  1 01:10:42 UTC 2019 on sn-devel-184

traffic: define kerberos_state to simplify code

2019-04-30T23:18:29+00:00

Signed-off-by: Joe Guo 
Reviewed-by: Andrew Bartlett 
Reviewed-by: Andreas Schneider

traffic: make code more pythonic

2019-04-30T23:18:28+00:00

Signed-off-by: Joe Guo 
Reviewed-by: Andrew Bartlett 
Reviewed-by: Andreas Schneider

traffic_replay: use packets per second as primary scale

2019-01-08T22:55:35+00:00

The old -S/--scale-traffic is relative to the original model, which made
its relationship to true traffic volumes quite opaque

Signed-off-by: Douglas Bagnall 
Reviewed-by: Andrew Bartlett

traffic: add option to reanimate dying conversations

2019-01-08T22:55:34+00:00

The traffic model is generated from a window in time, which makes
conversations appear to start and stop unnaturally at the window
boundaries. When the window is short compared to the traffic replay
time and the true expected conversation length, this has a significant
distorting effect, leading to more conversations than would be
expected to generate a given number of packets.

To offset this slightly we add the --conversation-persistence option
which tries to convert apparent death into a longish wait.

Signed-off-by: Douglas Bagnall 
Reviewed-by: Andrew Bartlett