App Install

Measure app installation speed. This scenario has two roles:

  • minimal: Installs a simple app which implements initialisation callbacks but otherwise doesn't contain a lot of code.
  • large: Installs a larger app that contains some dependencies and some generated data as padding to make the bundle larger.

These are intended to catch a compilation slowdown or issues with copying around large WASMs (e.g. accidental cloning or tracing). In each case, the behaviour will uninstall the app it installed so that it can re-install it on the next iteration.

Started
Thu, 18 Dec 2025 15:16:30 UTC
Peer count
1
Peer count at end
1
Behaviours
  • minimal (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
app_install_minimal_20337577633
First install time
The time from conductor startup to completion of the first app installation attempt.
2.27113235s
Install app timing
The time taken to install an app.
mean 0.642994s (SD = 0.418534s)

App Install

Measure app installation speed. This scenario has two roles:

  • minimal: Installs a simple app which implements initialisation callbacks but otherwise doesn't contain a lot of code.
  • large: Installs a larger app that contains some dependencies and some generated data as padding to make the bundle larger.

These are intended to catch a compilation slowdown or issues with copying around large WASMs (e.g. accidental cloning or tracing). In each case, the behaviour will uninstall the app it installed so that it can re-install it on the next iteration.

Started
Thu, 18 Dec 2025 15:15:09 UTC
Peer count
1
Peer count at end
1
Behaviours
  • large (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
app_install_large_20337577633
First install time
The time from conductor startup to completion of the first app installation attempt.
3.034344506s
Install app timing
The time taken to install an app.
mean 0.499474s (SD = 0.350176s)

DHT Sync Lag

Measure lag time between an agent publishing data and other peers being able to see it. This scenario has two roles:

  • write: A simple job that just creates entries with a timestamp field. Those entries are linked to a known base hash. For each write, the metric ws.custom.dht_sync_sent_count is incremented.
  • record_lag: A job that repeatedly queries for links from the known base hash. It keeps track of records that it has seen and when a new record is found, and calculates the time difference between the timestamp of the new record and the current time. That time difference is then recorded as a custom metric called wt.custom.dht_sync_lag.

After each behaviour loop the metric ws.custom.dht_sync_recv_count is incremented.

Started
Thu, 18 Dec 2025 15:17:25 UTC
Peer count
10
Peer count at end
10
Behaviours
  • record_lag (5 agents)
  • write (5 agents)
Wind Tunnel version
0.5.0-dev.0
Run ID
dht_sync_lag_20337577633
Create rate
The average number of created records per agent.
All agents
mean 57.61/s
  • agent: uhCAk2k_czQH99hFj_T040Pxg1IMahR1--qUTiTzEOYsanFjCiua7
mean 105.75/s
  • agent: uhCAk9KM5xHJo9kCQkN0Web3rH2nhvXjrfYLZET1IggW1D0C3v8Rf
mean 105/s
  • agent: uhCAkIf8uRrHvzoOySBO0eq1YDGQWqXUcRSGb7HTgTsAfM6iHVKfz
mean 42.89/s
  • agent: uhCAkV-gMuLTmb4H-6sYEaoR364gRzogVY7HMNul73nAkyj3QZacQ
mean 13/s
  • agent: uhCAkdR7Y4E3Xvxh96PZy1vMNB6TwLzdIrLHM-oFkYTHPjOa75wDg
mean 21.43/s
Sync lag timing
The average time between when a record was created and when it is first seen by an agent.
All agents
mean 261.283128s (SD = 62.088676s)
  • agent: uhCAk77WYmORRd6PQC-8E3iE3CGsob2yl8qf0gV8cr09JMoW1wzIG
mean 121.204818s (SD = 32.477226s)
  • agent: uhCAkHdO422Of5OOkOQOgAMaHMdmGzL7FmAl_lfpxCmHMgIivil-W
mean 27.058509s (SD = 16.265124s)
  • agent: uhCAkHvYksGU_sp3giu7S62wsh4g7oTpWzdEzWOPIH4MYpLN-eqk9
mean 238.882921s (SD = 134.017312s)
  • agent: uhCAkcZtsRJwWKy1Mvu2Esp7LWMMbaDDy0DM80En6Cv5DKXsVxO_n
mean 96.079669s (SD = 82.338213s)
  • agent: uhCAkmoQU_emgr0dxRVIi9Omm98dbfs1bvQrzEuBuzvZczZPR3C9M
mean 823.189725s (SD = 45.345506s)
Sync lag rate
The average number of created records discovered per agent.
All agents
mean 112.64/s
  • agent: uhCAk77WYmORRd6PQC-8E3iE3CGsob2yl8qf0gV8cr09JMoW1wzIG
mean 91.86/s
  • agent: uhCAkHdO422Of5OOkOQOgAMaHMdmGzL7FmAl_lfpxCmHMgIivil-W
mean 337.5/s
  • agent: uhCAkHvYksGU_sp3giu7S62wsh4g7oTpWzdEzWOPIH4MYpLN-eqk9
mean 44/s
  • agent: uhCAkcZtsRJwWKy1Mvu2Esp7LWMMbaDDy0DM80En6Cv5DKXsVxO_n
mean 18.82/s
  • agent: uhCAkmoQU_emgr0dxRVIi9Omm98dbfs1bvQrzEuBuzvZczZPR3C9M
mean 71/s
Error count
The number of errors encountered during the scenario.
3

First Call

This scenario installs a simple app which implements the init callback, and measures the time elapsed between start of install and calling init. It will uninstall the app it installed so that it can re-install it on the next iteration. This is required to re-run the initialisation callback.

Started
Thu, 18 Dec 2025 15:05:22 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
first_call_20337577633
Zome call timing
The time elapsed between start of install and calling init.
mean 0.021859s (SD = 0.011242s)

No scenario template for full_arc_create_validated_zero_arc_read!

Local Signals

This scenario is for testing the speed and reliability of local signals. It uses a zome with a function that will emit 10,000 signals. The scenario measures how long it takes to send the signals and how many have been received by the time the zome call ends.

Started
Thu, 18 Dec 2025 15:06:38 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
local_signals_20337577633
Send timing
The time taken to emit a batch of 10,000 signals.
mean 0.596919s (SD = 0.308736s)
Not enough time data to show a trend.
Receive timing
The time taken to receive the completed batch, to the nearest 250ms.
mean 30.598344s (SD = 0.308609s)
Not enough time data to show a trend.
Success ratio
The proportion of signals successfully received in a batch.
min 0.021199999377131466 < mean 0.4493 (SD = 0.3024) < max 0.9868000149726868

No scenario template for mixed_arc_get_agent_activity!

No scenario template for mixed_arc_must_get_agent_activity!

Remote Call Rate

Test the throughput of remote_call operations. Each agent in this scenario waits for a certain number of peers to be available or for up to two minutes, whichever happens first, before starting its behaviour.

Started
Thu, 18 Dec 2025 15:07:29 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
remote_call_rate_20337577633
Dispatch timing
The time between sending a remote call and the remote handler being invoked.
All agents
mean 0.004911s (SD = 0.009547s)
  • agent: uhCAk-OELMm-yJ2Kx2jF9IMh07dnG_MQfJvdFPNkT5YusX-a-dQVX
mean 0.004838s (SD = 0.008521s)
  • agent: uhCAkvKOu6TN3Ar6mGW84WPEBOsBuadxGmYk2JNRQ1OnjDo3Y22Nw
mean 0.004983s (SD = 0.010573s)
Round-trip timing
The total elapsed time to get a response to the client.
All agents
mean 0.010981s (SD = 0.010807s)
  • agent: uhCAk-OELMm-yJ2Kx2jF9IMh07dnG_MQfJvdFPNkT5YusX-a-dQVX
mean 0.010982s (SD = 0.010484s)
  • agent: uhCAkvKOu6TN3Ar6mGW84WPEBOsBuadxGmYk2JNRQ1OnjDo3Y22Nw
mean 0.01098s (SD = 0.01113s)

Remote Signals

This scenario tests the throughput of remote_signals operations.

Started
Thu, 18 Dec 2025 15:08:21 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
remote_signals_20337577633
Round trip time
The time from origin signal dispatch to origin receive of the remote side's response signal.
mean 0.03315s (SD = 0.069756s)
Timeouts
The number of timeouts waiting for the remote side's response signal (default timeout is 20 seconds).
0

Single-write, many-read

Creates an entry in the agent setup, then read one's own record back. This tests the maximum read performance for reading back local data when the chain is short.

Started
Thu, 18 Dec 2025 15:10:03 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
single_write_many_read_20337577633
read call timing
The time it takes to complete the zome call that retrieves the record.
mean 0.003276s (SD = 0.002215s)
read call rate (10s)
The number of zome calls made in a 10-second window.
mean 3030.1/10s
Error count
The number of errors collected.
0

Write/get_agent_activity

A scenario where write peers write entries, while get_agent_activity peers each query a single write agent's activity with get_agent_activity.

Before a target write peer and the requesting get_agent_activity peer are in sync, this will measure the get_agent_activity call performance over a network. Once a write peer reaches sync with a get_agent_activity peer, the write peer will publish their actions and entries, and so the get_agent_activity calls will likely have most of the data they need locally. At that point this measures the database query performance and code paths through host functions.

Started
Thu, 18 Dec 2025 15:18:17 UTC
Peer count
2
Peer count at end
2
Behaviours
  • get_agent_activity (1 agent)
  • write (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
write_get_agent_activity_20337577633
Highest observed action_seq
The change in the highest action index on the write peer's source chain.
313 ⬆ 1811 change: 478.59424920127793% over 826.275352403s ( 1.81/s)
get_agent_activity_full zome call timing
The time taken to call the zome function that retrieves information on a write peer's source chain.
  • agent: uhCAk4iQ76lk4oWGjcJnMCqJjGhEMGDY4KNQ0diZgpupME-azEbsl
mean 0.01929s (SD = 0.007014s)
Error count
The number of errors accumulated.
0

Write/Query

Creates an entry, then queries the source chain and performs a simple operation on the entries, then repeats.

Started
Thu, 18 Dec 2025 15:10:53 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
write_query_20337577633
Write timing
The time it takes to complete the zome function call that writes the entry.
mean 0.103337s (SD = 0.314891s)
Write rate
The number of writes completed per second.
mean 61/s
Error count
The number of errors accumulated during the run.
0

Write/Read

Creates an entry and reads it back, then repeats.

Started
Thu, 18 Dec 2025 15:11:45 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
write_read_20337577633
Write timing
The time taken to write the entry.
mean 0.025249s (SD = 0.015109s)
Write rate
The number of writes completed per second.
mean 157.62/s
Read timing
The time taken to read the entry.
mean 0.036877s (SD = 0.018911s)
Read rate
The number of reads completed per second.
mean 157.59/s
Error count
The number of errors accumulated over the run.
0

Write validated

Creates an entry, updates it and links the create to the update, then repeats. Each of the three actions is validated by the included hApp.

Started
Thu, 18 Dec 2025 15:12:35 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
write_validated_20337577633
Write timing
The time it takes to complete the zome function call that writes the entry, updates it, and links to the update.
mean 0.173595s (SD = 0.400031s)
Write rate
The number of write zome function calls that complete per second.
mean 26.41/s
Read timing
The time it takes to complete the zome function call that reads the data.
mean 0.187659s (SD = 0.353477s)
Read rate
The number of read zome function calls that complete per second.
mean 26.37/s
Error count
The number of errors accumulated over the run.
0

No scenario template for write_validated_must_get_agent_activity!

Zero-Arc Create and Read

A zero-arc/full-arc mixed scenario with two types of zero-arc nodes -- ones that create data and ones that read data -- as well as full arc nodes to "relay" the data. The scenario has three roles:

  • zero_write: A zero-arc conductor that just creates entries with a timestamp field. Those entries are linked to a known base hash so that zero_read nodes can retrieve them.
  • zero_read: A zero-arc conductor that reads the entries created by the zero-arc node(s) and records the time lag between when the entry had been created and when it was first discovered.
  • full: A full-arc conductor that is just here to serve entries to zero arc nodes.
Started
Thu, 18 Dec 2025 15:33:31 UTC
Peer count
9
Peer count at end
9
Behaviours
  • full (3 agents)
  • zero_read (3 agents)
  • zero_write (3 agents)
Wind Tunnel version
0.5.0-dev.0
Run ID
zero_arc_create_and_read_20337577633
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 132.19/s
  • agent: uhCAkHQ2BLWfQ1JeV_SknhFu91LKE9g1jsRUIuANikLG60ZcuQfta
mean 223.86/s
  • agent: uhCAkaSQ1lAkTUNd_mQlWXk_s8o3nlvIlMPI53lybCKNeKN-ZWtS1
mean 118.7/s
  • agent: uhCAkyBepQYdgajl76supgXn5OvbR-kS2YBzqfWlhZUw8Ni3ok7S9
mean 54/s
Sync lag timing
For each entry, the time lag between when it was created and when the full-arc node could read it via the get_timed_local_entries zome function.
All agents
mean 107.458207s (SD = 12.94997s)
  • agent: uhCAk5C7vx9vSqv-zVYUySrFGSsSTbTcLOLcSpQEakmP8c-uF-D7D
mean 178.741806s (SD = 13.6133s)
  • agent: uhCAksbAga5wOBKaCnWSxdigKGNZJV5MdIkjwhtFMfTRqydaR59-j
mean 36.174608s (SD = 12.28664s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 168.08/s
  • agent: uhCAk5C7vx9vSqv-zVYUySrFGSsSTbTcLOLcSpQEakmP8c-uF-D7D
mean 162.67/s
  • agent: uhCAksbAga5wOBKaCnWSxdigKGNZJV5MdIkjwhtFMfTRqydaR59-j
mean 173.5/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 5.28 (SD = 1.57) < max 7
zero-arc
min 0 < mean 4.14 (SD = 1.19) < max 7
Error count
The number of errors accumulated across all nodes.
0

Zero-Arc Create Data

A zero-arc/full-arc mixed scenario where zero-arc nodes create data and full-arc nodes read the data. The scenario has two roles:
  • zero: A zero-arc conductor that just creates entries with a timestamp field. Those entries are linked to a known base hash so that full-arc nodes can retrieve them.
  • full: A full-arc conductor that reads the entries created by the zero-arc node(s) and records the time lag between when the entry had been created and when it was first discovered.
Started
Thu, 18 Dec 2025 15:22:56 UTC
Peer count
10
Peer count at end
10
Behaviours
  • full (4 agents)
  • zero (6 agents)
Wind Tunnel version
0.5.0-dev.0
Run ID
zero_arc_create_data_20337577633
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 111.9/s
  • agent: uhCAk0X-WQv3_LdSmlf4NUuLDukptTJ20yCig9Nl_0iq9TgaEYcbg
mean 111.22/s
  • agent: uhCAk0ZUHgi3Q-damrVuEafv4y6DC1dZ00TyZqVqKm0GDoIitQ26z
mean 46.11/s
  • agent: uhCAkEpAdoCRVl3gEqJSM9LjhwvLbr-47CPaoMMVS3v1ITdZDBNKZ
mean 141.72/s
  • agent: uhCAkpNNXGr9XuBcNKeThcj3tAodXnIiXX8ny8dEGXIfGyKk-P7Vn
mean 47.68/s
  • agent: uhCAkvFjIU_rs7kcHSASo-VatiCErGBuBr0hLnZAAqtKRAOcUNm7f
mean 150.94/s
  • agent: uhCAkyxzAJdrRM7Y1bD23Y0SWAWGmpcFXa0dGD3gnW_ZyrJWAAmXG
mean 173.74/s
Sync lag timing
For each entry, the time lag between when it was created and when the full-arc node could read it via the get_timed_local_entries zome function.
All agents
mean 7.832388117368911e+30s (SD = 2.4595926251807025e+31s)
  • agent: uhCAk-2laFFC6LonKSN8tJATRW7Z7brN1rBTgfLLQthh4R8SW5C-C
mean 3.1329552469475642e+31s (SD = 9.83837050072281e+31s)
  • agent: uhCAkRwk7oCFF4SCYL4jnBqaMouw06o5bNhLwYJemYtdDGaX3nsa3
mean 104.783775s (SD = 13.860409s)
  • agent: uhCAkT_hXJk3gjG17T-ZMpfITSrNoaf4Bxt1jngDRUCFOlwhOGNZZ
mean 75.792731s (SD = 50.583843s)
  • agent: uhCAkyHyhdLhgMOzma_Qm0kwaO6yBHwCQNwVS8VKfw4ymsmqxGh6a
mean 70.748524s (SD = 44.392366s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 93.28/s
  • agent: uhCAk-2laFFC6LonKSN8tJATRW7Z7brN1rBTgfLLQthh4R8SW5C-C
mean 308/s
  • agent: uhCAkRwk7oCFF4SCYL4jnBqaMouw06o5bNhLwYJemYtdDGaX3nsa3
mean 8/s
  • agent: uhCAkT_hXJk3gjG17T-ZMpfITSrNoaf4Bxt1jngDRUCFOlwhOGNZZ
mean 16.44/s
  • agent: uhCAkyHyhdLhgMOzma_Qm0kwaO6yBHwCQNwVS8VKfw4ymsmqxGh6a
mean 40.67/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 3.95 (SD = 1.83) < max 9
zero-arc
min 0 < mean 4.5 (SD = 1.65) < max 7
Error count
The number of errors accumulated across all nodes.
1

Zero-arc Create Data (Validated)

A zero-arc/full-arc mixed scenario where zero-arc nodes create data that gets validated and full-arc nodes read the data. The scenario has two roles:

  • zero: A zero-arc conductor that just creates entries with a timestamp field. Those entries are linked to a known base hash so that full-arc nodes can retrieve them.
  • full: A full-arc conductor that reads the entries created by the zero-arc node(s) and records the time lag between when the entry had been created and when it was first discovered.
Started
Thu, 18 Dec 2025 15:28:16 UTC
Peer count
10
Peer count at end
10
Behaviours
  • full (4 agents)
  • zero (6 agents)
Wind Tunnel version
0.5.0-dev.0
Run ID
zero_arc_create_data_validated_20337577633
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 93.86/s
  • agent: uhCAkFO8Q4CDd506LdSwU81pjpOuKJZ58nc5bxtiis07QgKgFXwQC
mean 9.48/s
  • agent: uhCAkJlKA_zcJjnn19QF_1JNAoZUpD-xC0xTRhtEpfLzmMdYM_zU1
mean 49.63/s
  • agent: uhCAkP4TN8-X_p4XC2gILJQ_5cbtEd18xNDZZPpBbN_oVvh_M7_HY
mean 99.65/s
  • agent: uhCAkRK1ewLqfzP3AD-5YjIjU2nZXhBOVBZwaFsRRNywbukcc2psI
mean 155.25/s
  • agent: uhCAkTpUSoTQUDc8dRXH-VfEsKnFzbkO3MGkVR1zUp8rJDU0E-7iz
mean 146.76/s
  • agent: uhCAkeyg_f8EdYHJisNPyRzGvjmeK9PoAIMflSelU_TnNlPw6Ekgv
mean 102.37/s
Sync lag timing
For each entry, the time lag between when it was created and when the full-arc node could read it via the get_timed_local_entries zome function.
All agents
mean 127.934076s (SD = 34.866966s)
  • agent: uhCAkMIG05b_S0t8PGEG-qix70leOoWNb0qhs6FfdiiLzkwXZTzUt
mean 73.937895s (SD = 26.296592s)
  • agent: uhCAkX-HZkmSH2KsSStsRWcmrqpxhoH9LBztWL8E0231lJYBtDfb5
mean 74.886841s (SD = 60.950629s)
  • agent: uhCAkmakGwxMAC9d1YF7uYvQBOlOj-OVHZZFnnIQSzVJHapZE9tZ8
mean 256.036881s (SD = 30.285433s)
  • agent: uhCAkyvYQo5oY6dK5rgB7yi9pPWrTYXBKNlL8Ta0w5jCH8Ii65p0h
mean 106.874685s (SD = 21.935208s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 57.9/s
  • agent: uhCAkMIG05b_S0t8PGEG-qix70leOoWNb0qhs6FfdiiLzkwXZTzUt
mean 60.5/s
  • agent: uhCAkX-HZkmSH2KsSStsRWcmrqpxhoH9LBztWL8E0231lJYBtDfb5
mean 140/s
  • agent: uhCAkmakGwxMAC9d1YF7uYvQBOlOj-OVHZZFnnIQSzVJHapZE9tZ8
mean 21.33/s
  • agent: uhCAkyvYQo5oY6dK5rgB7yi9pPWrTYXBKNlL8Ta0w5jCH8Ii65p0h
mean 9.75/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 3.22 (SD = 1.2) < max 9
zero-arc
min 0 < mean 4.06 (SD = 1.57) < max 7
Error count
The number of errors accumulated across all nodes.
1

Zome Call, Single Value

Calls a zome function that returns a fixed value. This tests the maximum performance of zome calls when the zome function is not calling into Holochain other otherwise doing any work.

Started
Thu, 18 Dec 2025 15:13:26 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
zome_call_single_value_20337577633
Call timing
The time taken for the call to complete.
mean 0.006221s (SD = 0.001252s)
Call rate
The number of zome calls completed per second.
mean 1595.83/s
Error count
The number of errors accumulated during the run.
0