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
Mon, 12 Jan 2026 14:46:22 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_20922854585
First install time
The time from conductor startup to completion of the first app installation attempt.
2.56857324s
Install app timing
The time taken to install an app.
mean 0.365212s (SD = 0.109458s)

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
Mon, 12 Jan 2026 14:48:28 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_20922854585
First install time
The time from conductor startup to completion of the first app installation attempt.
0.385760546s
Install app timing
The time taken to install an app.
mean 0.067806s (SD = 0.01836s)

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
Mon, 12 Jan 2026 14:50:37 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_20922854585
Create rate
The average number of created records per agent.
All agents
mean 74.71/s
  • agent: uhCAk2zR_WdCAsoyKIW29IlVPBNR-eOvxaotYfUuVuECYry50Ew1f
mean 124.38/s
  • agent: uhCAkZtsUx3P-GaxpDgns2BVPuKndV0sK98Jc7Duw0GNfnm-YCCpS
mean 129.41/s
  • agent: uhCAkd4Qrw2aa92T59ruRsSiti-ByBxdS0gpbV-fjxheIqV6t57PC
mean 46.64/s
  • agent: uhCAkqBRNZSzZlhO9XU9D6mUpnsNUxYDlxN5SKeoKg7yFwULORK2n
mean 36/s
  • agent: uhCAkt6ImGq6M1y6Ml5994Q5lYtswZuQlJbkQjKT0EpEYdbUvt8Ed
mean 37.11/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 1.5662816527949334e+31s (SD = 3.297152178178228e+31s)
  • agent: uhCAk-JzICBe4znXaOu1JrOCHo03clkeeeK96Qq_R2Z_Vzs-xxSqT
mean 6.265126611179734e+31s (SD = 1.3188608712712913e+32s)
  • agent: uhCAkTf2nSljNmzcz1e0KnGjejKPXWQaXF0Cdjn2p3hCTApB2xYPJ
mean 165.715696s (SD = 64.624905s)
  • agent: uhCAkaUq4DaYXdTIvyVyaI51RHVOnU1AhuQohWcydo431TLz1EPqB
mean 834.85251s (SD = 45.707347s)
  • agent: uhCAkvYkl_jAp0HZNjPKluV5xpiWKctF7DhKedLMpX2F6twwRVzl6
mean 95.290171s (SD = 39.693648s)
Sync lag rate
The average number of created records discovered per agent.
All agents
mean 70.39/s
  • agent: uhCAk-JzICBe4znXaOu1JrOCHo03clkeeeK96Qq_R2Z_Vzs-xxSqT
mean 81.31/s
  • agent: uhCAkTf2nSljNmzcz1e0KnGjejKPXWQaXF0Cdjn2p3hCTApB2xYPJ
mean 62.25/s
  • agent: uhCAkaUq4DaYXdTIvyVyaI51RHVOnU1AhuQohWcydo431TLz1EPqB
mean 112/s
  • agent: uhCAkvYkl_jAp0HZNjPKluV5xpiWKctF7DhKedLMpX2F6twwRVzl6
mean 26/s
Error count
The number of errors encountered during the scenario.
0

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
Mon, 12 Jan 2026 14:27:10 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_20922854585
Zome call timing
The time elapsed between start of install and calling init.
mean 0.02394s (SD = 0.007816s)

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
Mon, 12 Jan 2026 14:29:16 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_20922854585
Send timing
The time taken to emit a batch of 10,000 signals.
mean 1.040071s (SD = 0.481394s)
Not enough time data to show a trend.
Receive timing
The time taken to receive the completed batch, to the nearest 250ms.
mean 31.041003s (SD = 0.481381s)
Not enough time data to show a trend.
Success ratio
The proportion of signals successfully received in a batch.
min 0.7172999978065491 < mean 0.8426 (SD = 0.0766) < max 0.9713000059127808

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
Mon, 12 Jan 2026 14:31:14 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_20922854585
Dispatch timing
The time between sending a remote call and the remote handler being invoked.
All agents
mean 0.004934s (SD = 0.001338s)
  • agent: uhCAkDAIHgga-fwCv6_SD60hailDknYMis9u-CtcjwB0N-j-ubnWo
mean 0.004945s (SD = 0.001096s)
  • agent: uhCAkM0kvgOYWGHwCE7fKxwMjrxoIRT9HOsbD7-C48SHVafdpzwU4
mean 0.004922s (SD = 0.001579s)
Round-trip timing
The total elapsed time to get a response to the client.
All agents
mean 0.011384s (SD = 0.002198s)
  • agent: uhCAkDAIHgga-fwCv6_SD60hailDknYMis9u-CtcjwB0N-j-ubnWo
mean 0.011387s (SD = 0.002048s)
  • agent: uhCAkM0kvgOYWGHwCE7fKxwMjrxoIRT9HOsbD7-C48SHVafdpzwU4
mean 0.011382s (SD = 0.002347s)

Remote Signals

This scenario tests the throughput of remote_signals operations.

Started
Mon, 12 Jan 2026 14:33:19 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_20922854585
Round trip time
The time from origin signal dispatch to origin receive of the remote side's response signal.
mean 0.032739s (SD = 0.034592s)
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
Mon, 12 Jan 2026 14:35:27 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_20922854585
read call timing
The time it takes to complete the zome call that retrieves the record.
mean 0.006495s (SD = 0.025817s)
read call rate (10s)
The number of zome calls made in a 10-second window.
mean 1521.52/10s
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
Mon, 12 Jan 2026 14:52:49 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_20922854585
Highest observed action_seq
The change in the highest action index on the write peer's source chain.
850 ⬆ 2104 change: 147.52941176470588% over 714.079596509s ( 1.76/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: uhCAkuulumArcIZh9uqZDFi89MxfM9tbI_e0g1c93rHURfjkEOPlX
mean 0.028501s (SD = 0.100916s)
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
Mon, 12 Jan 2026 14:37:35 UTC
Peer count
1
Peer count at end
1
Behaviours
  • Default (1 agent)
Wind Tunnel version
0.5.0-dev.0
Run ID
write_query_20922854585
Write timing
The time it takes to complete the zome function call that writes the entry.
mean 0.022932s (SD = 0.015739s)
Write rate
The number of writes completed per second.
mean 119.43/s
Error count
The number of errors accumulated during the run.
0

Write/Read

Creates an entry and reads it back, then repeats.

Started
Mon, 12 Jan 2026 14:39:37 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_20922854585
Write timing
The time taken to write the entry.
mean 0.115981s (SD = 0.305269s)
Write rate
The number of writes completed per second.
mean 73.17/s
Read timing
The time taken to read the entry.
mean 0.019239s (SD = 0.01302s)
Read rate
The number of reads completed per second.
mean 73.17/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
Mon, 12 Jan 2026 14:41:52 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_20922854585
Write timing
The time it takes to complete the zome function call that writes the entry, updates it, and links to the update.
mean 0.168985s (SD = 0.482072s)
Write rate
The number of write zome function calls that complete per second.
mean 26.14/s
Read timing
The time it takes to complete the zome function call that reads the data.
mean 0.196346s (SD = 0.466702s)
Read rate
The number of read zome function calls that complete per second.
mean 26.11/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, while must_get_agent_activity agents create entries which are validated with a must_get_agent_activity call for a single write agent's activity.

Before a target write peer and the requesting peer are in sync, the must_get_agent_activity request will go over the network. Once a write peer reaches sync with the requesting must_get_agent_activity peer, the write peer will publish their actions and entries, and so the must_get_agent_activity calls will likely have the data it needs locally. At that point this measures the database query performance and code paths through host functions.

Started
Mon, 12 Jan 2026 14:55:00 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-dev.0
Run ID
write_validated_must_get_agent_activity_20922854585
Highest observed action_seq
The change in the must_get_agent_activity peer's source chain top over the run.
16 ⬆ 1820 change: 11275% over 811.704297125s ( 2.22/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: uhCAkQw33Cq6LSOFtHqAwdWq5OfkzaFKLxp4GQ07blLpHFP1gYYcN
mean 0.182187s (SD = 0.252496s)
Error count
The number of errors accumulated over the run.
47613

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
Mon, 12 Jan 2026 15:03:30 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_20922854585
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 115.79/s
  • agent: uhCAk4G7uS2WsGE0y-97CWSa1U_Y1fzCftmweXXfu_nmd1eXVWdli
mean 12.5/s
  • agent: uhCAkdlqpB6efLzb0u_0Uf4LJ-kiDnEk-oV3LjH69TLScHlQJubRt
mean 156.64/s
  • agent: uhCAkuoZKLFeHp82WdJiGY-9sXbUET9WIGrFpx5NHBsETH2scMSNO
mean 178.23/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 4.6742083368260776e+29s (SD = 8.905562956999304e+30s)
  • agent: uhCAkNsEM8T8QxvJQ5zR_wgsKouxD51P5cdu68i8jsF4QrUGeek87
mean 9.348416673652155e+29s (SD = 1.7811125913998608e+31s)
  • agent: uhCAklt3NWP5UM1cV-C04Z6sfx3ScHw0C9lv2tUJxLSJAQwn1KK9W
mean 768.859736s (SD = 30.239996s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 36.19/s
  • agent: uhCAkNsEM8T8QxvJQ5zR_wgsKouxD51P5cdu68i8jsF4QrUGeek87
mean 32.75/s
  • agent: uhCAklt3NWP5UM1cV-C04Z6sfx3ScHw0C9lv2tUJxLSJAQwn1KK9W
mean 39.63/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 2.76 (SD = 2.75) < max 7
zero-arc
min 1 < mean 4.47 (SD = 0.83) < max 6
Error count
The number of errors accumulated across all nodes.
4

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
Mon, 12 Jan 2026 14:59:21 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_20922854585
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 28.37/s
  • agent: uhCAkmuiqBgvR35R8TsJxfX3trMNRs1Z3PA8O9jSffZ-zuCTvuhXA
mean 48.79/s
  • agent: uhCAknXgpOMvrqZxSLy0s9XkasXenyC2mZJrKjVNLg8weBDAwu00Y
mean 19.17/s
  • agent: uhCAkvewOuFN-XT6Kt85epB2nQ9g-YLroPgSv6EtciZV5kYq0qpF1
mean 10.92/s
  • agent: uhCAkwE26ADumtHneWcn4R-eYhAmlRn3b_HNhwZUnVw1yae-lg3sK
mean 10.23/s
  • agent: uhCAkyikiW81IrzgvElokxNtdI75RSQw4myRkH6hWo6X6bVyuJgiB
mean 52.72/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 6.083713353771247e+30s (SD = 2.1921074945166253e+31s)
  • agent: uhCAk3gViFRLpmUiomNAuJ-wip8EMyL4BSWwDS041q7LyGTSIium3
mean 114.355842s (SD = 46.589187s)
  • agent: uhCAk9CTi8vtmUdWZWEHZWI1HNdUi0VvVZEEq0nlanOkkkjnUxfN1
mean 752.25906s (SD = 34.830089s)
  • agent: uhCAkCQXXZavMms70qUvvzYU0W88jjE6GYL4IuUVp9ZH5D6P9iIvo
mean 201.337604s (SD = 62.784128s)
  • agent: uhCAkpBXT74BAWJnsSHuZKWcA97tAJROSlUzTg9hSwW9cIULkpKS6
mean 2.4334853415084988e+31s (SD = 8.768429978066501e+31s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 83.62/s
  • agent: uhCAk3gViFRLpmUiomNAuJ-wip8EMyL4BSWwDS041q7LyGTSIium3
mean 54.86/s
  • agent: uhCAk9CTi8vtmUdWZWEHZWI1HNdUi0VvVZEEq0nlanOkkkjnUxfN1
mean 56/s
  • agent: uhCAkCQXXZavMms70qUvvzYU0W88jjE6GYL4IuUVp9ZH5D6P9iIvo
mean 34.33/s
  • agent: uhCAkpBXT74BAWJnsSHuZKWcA97tAJROSlUzTg9hSwW9cIULkpKS6
mean 189.29/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 3.11 (SD = 1.72) < max 8
zero-arc
min 0 < mean 5.32 (SD = 1.96) < max 8
Error count
The number of errors accumulated across all nodes.
0

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
Mon, 12 Jan 2026 15:01:21 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_20922854585
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 44.55/s
  • agent: uhCAk8G58ptV1N6I_ExUhMxlte6iYoSKdUTMBxsO5NvRzRf62WwJH
mean 13.79/s
  • agent: uhCAkQsu--qxjazFxZmuXwLJha82UBh2yhdStkpb73zFIdyKjA_r6
mean 37.23/s
  • agent: uhCAkY1vfBD9Vh3pSCZqbWsvdArbsgH-o8L4ZLMTMVKX8Gdc_Nn5Z
mean 10.3/s
  • agent: uhCAkuhGEhW7LqUAIRrnYUlhFGXQU2Ca8yHncknpn4Ejgps8OwXGX
mean 115.11/s
  • agent: uhCAkxOB0zyyDPYEkTpXGoJ1BIgcKfvQykhnKUzPHwFi4nQccMte-
mean 46.33/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 155.860953s (SD = 59.381782s)
  • agent: uhCAkWLdXpJjuC1X-1gwifuYTOVWVYND5pF8to12V8FMNduKHOULL
mean 63.482692s (SD = 34.446845s)
  • agent: uhCAk_cB1wmDDb8E3X-IOIyd0wln67xvr5OqfMEwvwpS1VLGn4o3P
mean 163.585169s (SD = 88.699228s)
  • agent: uhCAkd05Z64od93fhlEsCL1NTEvJbbLm_fdG4cBod4uPzmxgvJ6j1
mean 163.747297s (SD = 47.83311s)
  • agent: uhCAkmtiWd3uUfjeyDbP5RNAlM-C5xWkuau_BODtSGF7CLjprEOZz
mean 232.628652s (SD = 66.547945s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 1.96/s
  • agent: uhCAkWLdXpJjuC1X-1gwifuYTOVWVYND5pF8to12V8FMNduKHOULL
mean 1/s
  • agent: uhCAk_cB1wmDDb8E3X-IOIyd0wln67xvr5OqfMEwvwpS1VLGn4o3P
mean 0/s
Not enough time data to show a trend.
  • agent: uhCAkd05Z64od93fhlEsCL1NTEvJbbLm_fdG4cBod4uPzmxgvJ6j1
mean 1/s
Not enough time data to show a trend.
  • agent: uhCAkmtiWd3uUfjeyDbP5RNAlM-C5xWkuau_BODtSGF7CLjprEOZz
mean 5.83/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 5.59 (SD = 2.18) < max 8
zero-arc
min 0 < mean 4.38 (SD = 1.54) < max 7
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
Mon, 12 Jan 2026 14:44:12 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_20922854585
Call timing
The time taken for the call to complete.
mean 0.003443s (SD = 0.001479s)
Call rate
The number of zome calls completed per second.
mean 2858.17/s
Error count
The number of errors accumulated during the run.
0