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2020-11-10ASTF: Lessen L7 processing in UDP_CPS profilesVratko Polak5-40/+30
Change-Id: I8b154156120821adb24273db2a232fa82200c0fe Signed-off-by: Vratko Polak <vrpolak@cisco.com> (cherry picked from commit 780612e1eaa2414808fb2cd6c88f7d428a8e3eed)
2020-10-29Support existing test types with ASTFVratko Polak24-268/+1498
Manual cherry-pick from master [1], reverting impact of [2] and [3]. [1] https://gerrit.fd.io/r/c/csit/+/28208/176 [2] https://gerrit.fd.io/r/c/csit/+/29077 [3] https://gerrit.fd.io/r/c/csit/+/29529 The heap multipliers are left in suites, as that simplifies cherry-picking between branches. Original [0] commit message: Support existing test types with ASTF + Add UDP_CPS, TCP_CPS, UDP_PPS and TCP_PPS suites. + Update existing cps traffic profiles. + Add missing traffic profiles. + UDP: + Single burst of 32 packets was confirmed as safe enough for TRex. + Maybe 64 could work, but not enough testing for that. + Multiple bursts have lead to reduced TRex performance, as overlaping bursts (from different client instances) tend to fill up the buffers. + TCP: + Data size set to 11111 bytes, completely arbitrarily. + Results look reasonable, so I have kept that. - MSS not set at all - No tested support for frame size other than 64B. - Frame size does not even factor into TCP profiles. + So other frame sizes are skipped in autogen. + Update tags in related suites. - HOSTS_{n} and SRC_USER_{n} should be unified. - Questionable clarification on difference between IP4BASE and SCALE. + Add NAT state resetters to tests that need them. + Resetter is called (if set) before each measurement. + If ramp-up is detected, resetter is not set. + Rename "mult" argument to "multiplier". + Abstracted from packets to transactions. + Transaction corresponds to profile. + TRex multiplier argument sets target rate in transactions per second. + The familiar STL traffic: + Bidirectional is considered to be 2 packets per transaction. + Unidirectional is considered to be 1 packet per transaction. + The newer ASTF traffic: + 4 subtypes, each has different number of packets per transaction. + For max rate computation: + Packets in the more numerous direction are considered. + Rely on TRex reported traffic duration for ASTF: + Use the server side value. - Client side value is higher by an overhead. - TRex is not sending traffic during that time. + Remove delays from traffic profiles. - Those delays would increase the reprted traffic time. + Support for scale lmited trials. + Only for ASTF profiles, each ASTF profile has limited scale. + Scale defined in suite variables. + For TRex to send all transactions provided duration value is ignored. + The appropriate value is computed in TrafficGenerator. + An ad-hoc time constant is added to match the TRex client side time overhead. + The profile driver receives the computed duration. + Measurement for PLRsearch add a sleep if the computed duration is smaller. + Alternative argument for search algos if scale is limited. + Both need higher timeout to accomodate big scales. + MLRsearch can afford fewer phases. + Added a parameter to optionally shorten the duration. + Use short duration for runtime stats trial and failure stats trial. + Use very large keepalive values in udp profiles to avoid ka packets. + No polling in ASTF profile driver. - Polling could eliminate the time overhead value. + But polling proved to introduce some loss, affecting the results. + Handle duration stretching in ASTF by stopping traffic. + The stop has several steps so that: + The traffic is really stopped entirely. + Late packets do not count (maybe as errors). + Stats are preserved to read for results (and cleared afterwards). + Several quantities added to ReceiveRateMeasurement: + Original target duration is preserved (algos need that). + Input estimate (tps) for early search iterations. + Output estimate (maybe pps) for MRR output. + Strict result (unsent counts as loss) for NDR. + Use L2 counters (opackets, ipackets) where possible. - TRex has trouble processing packets for the L7 ones at high loads. + Remove warmup from profile drivers and keywords. + Suites should call "Send ramp-up traffic" explicitly if needed. + Added parsing for few more counters. + Both to use in formulas or just for debug purposes. - Only 64B cases in autogen, framesize support to be added later. + Latency streams during search can be enabled via PERF_USE_LATENCY env var. + MLRsearch improvments: + Rename argument names to min_rate and max_rate. + Use relative receive rate in initial phase. + PLRsearch improvements: + Careful computation when output (pps) does not match input (tps). + Use geometric distribution (instead of Poisson). + Helps agains math errors. + This should improve estimate stability. - But in practice big losses still lead to significant jumps. + Traffic generator improvements: + send_traffic_on_tg now calls the full set_rate_provider_defaults. + _send_traffic_on_tg_internal for the logic without provider defaults. + As the internal function is re-used by measure() without affecting defaults. + Move _parse_traffic_results just before get_measurement_result. + As the latter uses fields set bu the former, it is now easier to read. + Multiple sources for approximate duration. + Tried from more precise to more available. + Includes logic for _pps tests (added in later change). + Move explicit type conversions to earlier occurences. + Profile driver output field uses semicolons to simplify parsing. + Performance Robot lib file split to several smaller ones. + performance_actions.robot: + Hosts Additional Statistics Action For * keywords. + performance_display.robot: + Hosts keyword for displaying and verifying results. + Change test message to use the correct unit (pps or cps). + performance_limits.robot renamed to performance_vars.robot + Added many keywords, mostly for accessing test variables. + Moved variables for Policer into a new keyword there. + Some keywords need sophisticated logic. - Other are basically Get Variable Value. + But in future more logic can be added, without editing callers. + Documentation for the new keywords acts as a documentation for test variables. + performance_utils.robot has the rest. + Eliminated arguments if the value is in test variable. + Small improvements to documentation. - Still not enough cleanup with respect to arguments and test variables. + Keywords are sorted alphabetically now in each one. + Suites: + Unified variables table: + No colons in comments. + ${n_hosts}, ${n_ports} and use them instead hardcoded numbers. + Add -cps to existing cps suite names. + Remove "trial data overwrite". + Compute max rate as in STL suites. + Each NAT suite has ip4base suite to compare results to. - Those act as indirect TRex calibration. - VPP does not lose packets in those. + Latency in ASTF suites is disabled hard. - As we do not support latency in ASTF profiles yet. + Unidirectional tests governed by suite variable, not an argument. + Write long argument lists vertically. + Prefer to use argument names. + In Python, also the last argument is followed by comma. + It makes renaming and reordering easier. + Similarly applies to prints with long lists of values. + A TODO to update api crc file comments. Change-Id: I84729355edbec051298a9de1162107f88ff5737d Signed-off-by: Vratko Polak <vrpolak@cisco.com>
2020-09-11test: nat44det - add session number checkJan Gelety2-338/+0
- some tests need to reduce rate for ramp-up phase - some tests need to extend trail duration in ramp-up phase - removed 2n1l-10ge2p1x710-ethip4udp-nat44det-h1-p63-s63 suite as nat out ports are randomly selected from available port range so T-Rex stateless is not able to provide required out2in traffic Change-Id: I1145496610d202f81d911e68aa819844d7600918 Signed-off-by: Jan Gelety <jgelety@cisco.com> (cherry picked from commit 3b408b7ea702dd3817442186035121fe862cbf7f) Change-Id: I53da8c086373d06e0842e5563964d9287c0fa403 Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-09-21Tests: nat44ed-unipmikus5-0/+590
Signed-off-by: pmikus <pmikus@cisco.com> Change-Id: Iee488e2244a4e253471310bc7fb9640c69c6b0cb (cherry picked from commit d3f265ab0e44baa9fe223643240253f9d54c1b4c)
2020-09-07VPP-DEV API COV: Add NAT44-ED testsJan Gelety2-0/+220
Jira: CSIT-1755 Change-Id: I34baa22a49f44da3fa80d91fa2f4132c982fe610 Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-09-03FIX: use correct minimal packet length in scapy scriptsJan Gelety1-5/+9
Change-Id: Icd1b4a3edb203cb0963203bb2e3e765b35c81600 Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-08-24T-Rex: 2.82, core pin, 8 workerspmikus7-9/+13
+ Bump T-Rex version. We need new features for ASTF test. + Apply core pining. Results in a more stable performance. + Tweak the number of T-Rex workers. + We need an even value to achieve ymmetric performance with pinning. + Value 8 was selected as a best compromise. This is a combination of 3 commits. This is the 1st commit message: T-Rex: 2.82 This is the commit message #2: Change Trex to CORE_MASK_PIN mode to improve performance https://trex-tgn.cisco.com/trex/doc/trex_stateless.html#_core_masking_per_interface Above link have below explaination, "When the profile is symmetric, performance can be improved by pinning half of the cores to port 0, and half of the cores to port 1, thus avoiding cache trashing and bouncing." The reason to change this is that to run CSIT with 100G NIC often failed with "TRex stateless runtime error timeout", it caused by Trex can not send enough traffic within the fixed duration. by change to CORE_MASK_PIN mode fix the issue. Not editing ASTF, as that supports different options. This is the commit message #3: Experiment: Vary number of TRex workers With CORE_MASK_PIN, we can get more predictable time distribution. Decided to use 8 workers, that gives good results both for high end (RDMA-core l2patch) and low end (vhost) tests. Change-Id: I5c61127799e0624464e960fcb980ad1c4058e744 Signed-off-by: pmikus <pmikus@cisco.com> Signed-off-by: Yulong Pei <yulong.pei@intel.com> Signed-off-by: Vratko Polak <vrpolak@cisco.com>
2020-08-20Framework: use 'stl' in trex stateless profile namesJan Gelety137-0/+0
Change-Id: I74641cc89d2f25d50b67d51bf2567082b420aabb Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-08-19Sign off on relicensing of scapy related files for IntelRay Kinsella1-0/+8
Signed-off-by: Ray Kinsella <mdr@ashroe.eu> Change-Id: I5f328b702ff7faffd432d08925cf1c247de1d680
2020-08-19Sign off on relicensing of scapy related files for Cisco.Ed Warnicke1-0/+18
Change-Id: Ia27726d8bed649a55ac93ea3464b8bf278fe9d8f Signed-off-by: Ed Warnicke <hagbard@gmail.com>
2020-08-19Perf: NAT44 endpoint-dependent mode - tcp, part IJan Gelety10-0/+620
Jira: CSIT-1736 - tcp synthetic profiles w/o data packets - tcp cps perf tests, phase I (no special "search cps" KW) Change-Id: I52be34b0fdd51d7a33c8c5de9b46d7064c48f7fa Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-08-07Perf: NAT44 endpoint-dependent mode - udp, part IJan Gelety9-64/+619
- continuation of https://gerrit.fd.io/r/c/csit/+/26898 as there was reached limit of changes (1000) Jira: CSIT-1711 - udp synthetic profiles w/o data packets - udp cps perf tests, phase I (no special "search cps" KW) Part I means that we are using MRR tests to collect traffic data until there is ready new CPS test type with corresponding algorithm. Change-Id: I0d30feb9ecf1d0bff937152656f8eb422f831378 Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-07-23T-Rex: Add advanced stateful modeJan Gelety8-24/+870
- provide base routines to run T-Rex in advanced stateful mode Change-Id: Ib0dc5f2919c370753335f6446860683dc4b12d93 Signed-off-by: Jan Gelety <jgelety@cisco.com>
2020-07-30TRex stateless: Fix unidirectional testsVratko Polak1-1/+1
Change-Id: I5e101f012ae4a4383e61b274499817d146479993 Signed-off-by: Vratko Polak <vrpolak@cisco.com>
2020-07-16FIX: CSIT annoyances IIpmikus1-1/+0
- useless code Signed-off-by: pmikus <pmikus@cisco.com> Change-Id: I65dd0f4e1744e4ff84661cd38a67d4490c9733e7
2020-06-17NAT44-EI traffic profiles fix.Maros Mullner8-8/+16
Signed-off-by: Maros Mullner <maros.mullner@pantheon.tech> Change-Id: I200d566aa94c2ae183aa3bc9db85a290f9da858d
2020-06-10NAT44 EI testsMaros Mullner10-7/+1357
Signed-off-by: Maros Mullner <maros.mullner@pantheon.tech> Change-Id: Ib5f58f60a1409ed139e2846793bf52fdc02a6571
2020-05-12FIX: L3fwd properlypmikus1-6/+6
Signed-off-by: pmikus <pmikus@cisco.com> Change-Id: Ibdfc0350a101c4815f25456176e25bb1d90fd881
2020-05-06Separate files needing GPL licenseVratko Polak148-0/+23600
+ Keep apache license for now, until this is completed: https://wiki.fd.io/view/TSC/Relicensing_Procedure + Add utilities for switching license comment blocks. - They do not preserve attributes, so executable flag is lost. + Move the affected files to GPL/. + Update paths so files are executed from the new location. + Change the way scripts are started to do not require executable flag. + Employ OptionString when constructing longer command lines. + Move also PacketVerifier.py and TrafficScriptArg.py as they are linked with traffic scripts. + That means the two files are outside "resources" package tree now. + Added __init__.py files so relative imports work in new package tree. + Start traffic scripts as python modules to allow relative imports. + Once again needed because they are outside the default PYTHONPATH. Change-Id: Ieb135629e890adbaf5b79497570f3be25b746f9f Signed-off-by: Vratko Polak <vrpolak@cisco.com>