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, 22 Jan 2026 01:04:46 UTC
Peer count
1
Peer count at end
1
Behaviours
  • minimal (1 agent)
Wind Tunnel version
0.5.0
Run ID
app_install_minimal_21231378266
First install time
The time from conductor startup to completion of the first app installation attempt.
1.55942528s
Install app timing
The time taken to install an app.
mean 0.581301s (SD = 0.737738s)

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, 22 Jan 2026 01:02:37 UTC
Peer count
1
Peer count at end
1
Behaviours
  • large (1 agent)
Wind Tunnel version
0.5.0
Run ID
app_install_large_21231378266
First install time
The time from conductor startup to completion of the first app installation attempt.
1.671786862s
Install app timing
The time taken to install an app.
mean 0.572958s (SD = 0.417474s)

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, 22 Jan 2026 01:06:54 UTC
Peer count
10
Peer count at end
10
Behaviours
  • record_lag (5 agents)
  • write (5 agents)
Wind Tunnel version
0.5.0
Run ID
dht_sync_lag_21231378266
Create rate
The average number of created records per agent.
All agents
mean 93.72/s
  • agent: uhCAkWi-t8tNx5GEhOTzSMNhoVR1LPXllFl6shjH6CVbYK46ZSL9v
mean 40.96/s
  • agent: uhCAkbGCnezK-FAtOglxstZlo_OeyixPaqbow5qHZdo4hB0KXa_rL
mean 125.75/s
  • agent: uhCAkgGdm5794bjIaiuQopJv-aOckM5uDFRokDftNPid_ErkLbrcf
mean 40.86/s
  • agent: uhCAko2IGJ6Bd-EUITzQf1-IctWv3roJiK8JyQI6a25p3q5M4TJ9I
mean 18.21/s
  • agent: uhCAkzNYCcAxLCHq4fZ-wQ8gzgzmAoFpA7KDgMR7qnFuA6TpnWSyQ
mean 242.82/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 3.7049256118019784e+31 (SD = 5.019496105478968e+31)
  • agent: uhCAk71AxgB7arLxM0TnjmFrEt_TfGd21yrEU3MfOCpVltCzeWwHM
mean 1.6477220161024765e+32s (SD = 1.7005645046048966e+32s)
  • agent: uhCAkLctbHi-SJXjRlMnnjDD_3idFbQXUOBM_JxzuLfmQjlIrzeba
mean 2.047407897985124e+31s (SD = 8.09183548134588e+31s)
  • agent: uhCAkVBVl2LZ5ZmXWbQZorVugardqAb1H6UX-jcjIftNRdSR_uuP6
mean 113.835731s (SD = 56.446635s)
  • agent: uhCAkn-LoqDNurFObTvT-kOqEo5E1PJm9YbQISadE1yE_5QiL5YNG
mean 373.349192s (SD = 69.393354s)
  • agent: uhCAkuYZzcBvvs9w5EXIKb_wColTsjUYQAUMN5KNOi-obULQOH_lY
mean 118.156373s (SD = 37.929138s)
Sync lag rate
The average number of created records discovered per agent.
All agents
mean 176.27/s
  • agent: uhCAk71AxgB7arLxM0TnjmFrEt_TfGd21yrEU3MfOCpVltCzeWwHM
mean 135/s
  • agent: uhCAkLctbHi-SJXjRlMnnjDD_3idFbQXUOBM_JxzuLfmQjlIrzeba
mean 529/s
  • agent: uhCAkVBVl2LZ5ZmXWbQZorVugardqAb1H6UX-jcjIftNRdSR_uuP6
mean 85.45/s
  • agent: uhCAkn-LoqDNurFObTvT-kOqEo5E1PJm9YbQISadE1yE_5QiL5YNG
mean 18/s
  • agent: uhCAkuYZzcBvvs9w5EXIKb_wColTsjUYQAUMN5KNOi-obULQOH_lY
mean 113.9/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, 22 Jan 2026 00:42:13 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
first_call_21231378266
Zome call timing
The time elapsed between start of install and calling init.
mean 0.028582s (SD = 0s)
Not enough time data to show a trend.

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, 22 Jan 2026 00:44:29 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
local_signals_21231378266
Send timing
The time taken to emit a batch of 10,000 signals.
mean 0.584149s (SD = 0.278237s)
Not enough time data to show a trend.
Receive timing
The time taken to receive the completed batch, to the nearest 250ms.
mean 30.585276s (SD = 0.278243s)
Not enough time data to show a trend.
Success ratio
The proportion of signals successfully received in a batch.
min 0.7106000185012817 < mean 0.8113 (SD = 0.0494) < max 0.8644999861717224

No scenario template for mixed_arc_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, 22 Jan 2026 00:46:39 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
remote_call_rate_21231378266
Dispatch timing
The time between sending a remote call and the remote handler being invoked.
All agents
mean 0.01013 (SD = 0.061057)
  • agent: uhCAkfDOU61JiLpVYMTaR3um9GsaJGuQYtHlfGlgQXW8X2gCl12yb
mean 0.010149s (SD = 0.055194s)
  • agent: uhCAkhZ8EEy86R3vjNOtKMuKrdJSsBZCJi6tIjCJGzBqtJaBUmkir
mean 0.010111s (SD = 0.066919s)
Round-trip timing
The total elapsed time to get a response to the client.
All agents
mean 0.023953 (SD = 0.11052)
  • agent: uhCAkfDOU61JiLpVYMTaR3um9GsaJGuQYtHlfGlgQXW8X2gCl12yb
mean 0.023895s (SD = 0.110427s)
  • agent: uhCAkhZ8EEy86R3vjNOtKMuKrdJSsBZCJi6tIjCJGzBqtJaBUmkir
mean 0.024011s (SD = 0.110612s)

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, 22 Jan 2026 00:51:03 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
single_write_many_read_21231378266
read call timing
The time it takes to complete the zome call that retrieves the record.
mean 0.005485s (SD = 0.001717s)
read call rate (10s)
The number of zome calls made in a 10-second window.
mean 1806.54/10s
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, 22 Jan 2026 01:11:27 UTC
Peer count
2
Peer count at end
2
Behaviours
  • get_agent_activity (1 agent)
  • write (1 agent)
Wind Tunnel version
0.5.0
Run ID
write_get_agent_activity_21231378266
Highest observed action_seq
The change in the highest action index on the write peer's source chain.
469 ⬆ 12215 change: 2504.4776119402986% over 856.850320375s ( 13.71/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: uhCAkSSHyQ5nScpIH4C3BactojdqVjCTnIXWJ8MMSfJs9_lEzdqJU
mean 0.046698s (SD = 0.072849s)
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, 22 Jan 2026 00:53:20 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
write_query_21231378266
Write timing
The time it takes to complete the zome function call that writes the entry.
mean 0.100716s (SD = 0.308069s)
Write rate
The number of writes completed per second.
mean 67/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, 22 Jan 2026 00:55:40 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
write_read_21231378266
Write timing
The time taken to write the entry.
mean 0.071527s (SD = 0.221909s)
Write rate
The number of writes completed per second.
mean 101.37/s
Read timing
The time taken to read the entry.
mean 0.021923s (SD = 0.017104s)
Read rate
The number of reads completed per second.
mean 101.37/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, 22 Jan 2026 00:57:59 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
write_validated_21231378266
Write timing
The time it takes to complete the zome function call that writes the entry, updates it, and links to the update.
mean 0.084318s (SD = 0.160285s)
Write rate
The number of write zome function calls that complete per second.
mean 50.57/s
Read timing
The time it takes to complete the zome function call that reads the data.
mean 0.110945s (SD = 0.171187s)
Read rate
The number of read zome function calls that complete per second.
mean 50.57/s
Error count
The number of errors accumulated over the run.
0

Write Validated must_get_agent_activity

A scenario where write agents create entries in batches of 10, while must_get_agent_activity agents each pick a random write agent and repeatedly attempt to create an entry that references the chain top of their latest batch. This reference means that the entry's validation function needs to make a must_get_agent_activity call.

The purpose of this scenario is to measure the time it takes for published agent activity data to be gossiped among authorities and become available to peers that query it via must_get_agent_activity.

This test is similar to Mixed-Arc must_get_agent_activity, but all agents are full-arc.

Started
Thu, 22 Jan 2026 01:13:45 UTC
Peer count
2
Peer count at end
2
Behaviours
  • must_get_agent_activity (1 agent)
  • write (1 agent)
Wind Tunnel version
0.5.0
Run ID
write_validated_must_get_agent_activity_21231378266
Highest observed action_seq
The change in the highest action_seq of a write agent successfully retrieved by a must_get_agent_activity agent. This reflects the DHT's ability to propagate agent activity ops and make them available to querying peers.
16 ⬆ 1545 change: 9556.25% over 727.801991303s ( 2.1/s)
Chain batch delay timing
The time between a write agent's creation of a batch and a must_get_agent_activity agent's successful discovery of the batch and creation/self-validation of a new entry that depends on it.
  • must_get_agent_activity_agent: uhCAkM73YJMA0mD9rA8DKvMzQO6C3M4Qfb06DpA60staIrJdI5zxp
mean 76.07785s (SD = 42.02888s)
Chain batch delay rate
The rate at which a must_get_agent_activity agent was able to discover batches and create/self-validate new entries that depend on them.
  • must_get_agent_activity_agent: uhCAkM73YJMA0mD9rA8DKvMzQO6C3M4Qfb06DpA60staIrJdI5zxp
mean 3.04/s
create_validated_sample_entry zome call timing
The time taken to complete the zome function call that creates the entry that depends on a write agent's source chain.
  • agent: uhCAkM73YJMA0mD9rA8DKvMzQO6C3M4Qfb06DpA60staIrJdI5zxp
mean 0.987605s (SD = 1.979472s)
Retrieval errors
A running accumulation of the errors encountered by an agent when attempting to self-validate actions that depend on must_get_agent_activity calls.
  • agent: uhCAkM73YJMA0mD9rA8DKvMzQO6C3M4Qfb06DpA60staIrJdI5zxp
Final error count
The total number of all types of error accumulated over the run by all agents.
4635

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, 22 Jan 2026 01:18:37 UTC
Peer count
10
Peer count at end
10
Behaviours
  • full (4 agents)
  • zero (6 agents)
Wind Tunnel version
0.5.0
Run ID
zero_arc_create_data_21231378266
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 149.92/s
  • agent: uhCAkJXlpyqPvax9DvLWnwF0PQz2ifFunix-H0pV3LekOlIBE49DK
mean 386.14/s
  • agent: uhCAkT6xSMKv3Bm7Bx-mZJOgizNj6XvErmQ_lSOkMtdD972sOt8Pg
mean 148.05/s
  • agent: uhCAkcrsKP_YvnfTL8zzVC-2srPKY09IaADO5OLk78WWFoh6x3qUa
mean 55.81/s
  • agent: uhCAkf0Msfgjwpx6iPFY0TUQqemq3b6s0qBbsZMAxxzUkxTkVPB-C
mean 193.3/s
  • agent: uhCAko0_nS8c0wE0-P4pdi5VGEH2m7-RmDzFSr8IdQbZn38Mn7PLd
mean 32/s
  • agent: uhCAkxj1TGLjVF92gqmsghKVxGEBumCFdGcRJukkd2MVA_9Z6tgpA
mean 84.19/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 130.147019 (SD = 38.283636)
  • agent: uhCAk3xrQ6fCP8_LnCW9XEhzCLUwhQWjzWwKpr5Wo-vv6t8jw81Bd
mean 84.084731s (SD = 56.981812s)
  • agent: uhCAkKAwvPGUQmGlpVoYAayUtxr0ZvDVJsMDpKzhv3em7Az37_j_b
mean 54.801619s (SD = 29.151598s)
  • agent: uhCAkU_scCJj7M5kbGUjwN1gMvWz7OQO6DriyYcuMQ75MwwVd7nvC
mean 186.023085s (SD = 42.74994s)
  • agent: uhCAktyYzKh9CVienX3Z_xhaUo-zlLuhCV_XiGVmvyRRVooJ45Q-t
mean 195.678642s (SD = 24.251192s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 88.92/s
  • agent: uhCAk3xrQ6fCP8_LnCW9XEhzCLUwhQWjzWwKpr5Wo-vv6t8jw81Bd
mean 42.44/s
  • agent: uhCAkKAwvPGUQmGlpVoYAayUtxr0ZvDVJsMDpKzhv3em7Az37_j_b
mean 153.5/s
  • agent: uhCAkU_scCJj7M5kbGUjwN1gMvWz7OQO6DriyYcuMQ75MwwVd7nvC
mean 108.75/s
  • agent: uhCAktyYzKh9CVienX3Z_xhaUo-zlLuhCV_XiGVmvyRRVooJ45Q-t
mean 51/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 1 < mean 4.63 (SD = 2.26) < max 9
zero-arc
min 0 < mean 4.28 (SD = 1.5) < max 8
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, 22 Jan 2026 01:20:49 UTC
Peer count
10
Peer count at end
10
Behaviours
  • full (4 agents)
  • zero (6 agents)
Wind Tunnel version
0.5.0
Run ID
zero_arc_create_data_validated_21231378266
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 108.54/s
  • agent: uhCAk6DQzt0bBZSQjFSNPqunpx9UtXd_Z6H2sMo9bfw6Ldpo5sITC
mean 57.4/s
  • agent: uhCAkB23i9UVJlqAkEX5WLllbPM0WSrLhTn0YWxY0U2nFkAXgfBTs
mean 126.5/s
  • agent: uhCAkObGpracEEupG-WpPWGG1e2jmjnNJ784uUycTtjjOTHWSosGN
mean 228/s
  • agent: uhCAklqqTXkYSTgrrrH0GhNsjHUmqC1g1iPA_Txp5qUdM6lPUONok
mean 72.4/s
  • agent: uhCAkp-zSjgwOkksoX12Sa32PFUewrvycSh9W3Qz2uvDrc7N2kLu-
mean 58.4/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 40.970487 (SD = 5.39704)
  • agent: uhCAk8QiScV6n-s85_ZntR0fbEQ_Tede2tBQFOyqZ0FrMVgRv-coV
mean 58.752789s (SD = 0s)
Not enough time data to show a trend.
  • agent: uhCAkEGDsitfv6xt31a8u_dOXiZxapqaaRBxFBFr0Hs0Z30s4wznp
mean 19.882656s (SD = 13.208569s)
Not enough time data to show a trend.
  • agent: uhCAkgUyj4-wEYOzmvocAK5s0-k_jIv4BzX-1T-uHZ-TCMoK1ihhG
mean 44.276016s (SD = 2.982551s)
Not enough time data to show a trend.
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 0/s
  • agent: uhCAk8QiScV6n-s85_ZntR0fbEQ_Tede2tBQFOyqZ0FrMVgRv-coV
mean 0/s
Not enough time data to show a trend.
  • agent: uhCAkEGDsitfv6xt31a8u_dOXiZxapqaaRBxFBFr0Hs0Z30s4wznp
mean 0/s
Not enough time data to show a trend.
  • agent: uhCAkgUyj4-wEYOzmvocAK5s0-k_jIv4BzX-1T-uHZ-TCMoK1ihhG
mean 0/s
Not enough time data to show a trend.
Open connections
The number of currently open connections to other conductors.
full-arc
min 1 < mean 5.48 (SD = 2.22) < max 8
zero-arc
min 4 < mean 7.04 (SD = 1) < max 8
Error count
The number of errors accumulated across all nodes.
0

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, 22 Jan 2026 01:00:14 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0
Run ID
zome_call_single_value_21231378266
Call timing
The time taken for the call to complete.
mean 0.00418s (SD = 0.000837s)
Call rate
The number of zome calls completed per second.
mean 2364.43/s
Error count
The number of errors accumulated during the run.
0