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
Tue, 23 Dec 2025 01:48:05 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_20448549296
First install time
The time from conductor startup to completion of the first app installation attempt.
1.380593589s
Install app timing
The time taken to install an app.
mean 0.323887s (SD = 0.095273s)

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
Tue, 23 Dec 2025 01:45:50 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_20448549296
First install time
The time from conductor startup to completion of the first app installation attempt.
1.052786862s
Install app timing
The time taken to install an app.
mean 0.542036s (SD = 0.392362s)

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
Tue, 23 Dec 2025 01:50:16 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_20448549296
Create rate
The average number of created records per agent.
All agents
mean 91.8/s
  • agent: uhCAk5wxt7QrnqBYHuct6il9F8XaDzCBxJ7nfCWnIDEcHV5aS9mgt
mean 34.32/s
  • agent: uhCAkC9bp1P6_FjegJEtfDC5oj8QEeIMZ1jrO5kotH7PYrYNhVCU_
mean 47.59/s
  • agent: uhCAkLgyILOPsWt7BXnSaHlFiu7DFdJKnKc_EYckxlj1ASM2BpSEv
mean 181.07/s
  • agent: uhCAkYljO_Wglz6qRUuVQOZ_-KDVL0zXyP8uuqp4oRkqdAvX_BNUA
mean 26.68/s
  • agent: uhCAku6soa7jWM4gwge8T7Usd-R9sfpr11IYAWxbZfjYnmN_8xkoh
mean 169.36/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 8.773608367636252e+30s (SD = 3.2083099177472544e+31s)
  • agent: uhCAkHtQzZd0sU2f9iPzRehNYlE0ROW1K5rXLA7UURLfG0sZVEkZ2
mean 136.776256s (SD = 62.606185s)
  • agent: uhCAkZzOvoZyZ7XQG2-OqFgpbGjQOJpuWCrtxSfWt0wASSxaHcvn7
mean 3.308986732032348e+31s (SD = 1.0082142160068393e+32s)
  • agent: uhCAk_-DleVOyt6IhSvcoxJxF-f7s3jYQFxWeF4RvNANDCzD8qsbq
mean 1.077817451785778e+31s (SD = 5.959407428667879e+31s)
  • agent: uhCAkkoWVWH_uQj7UC3Rnkrn3uqT0l1eDgTozEYKjhFcesDmdesR-
mean 263.137673s (SD = 94.634962s)
  • agent: uhCAkxeVfLHcQV7lnrXbJ4V_FBXjOYWuvpPlJsn3zD05jnsWLmb9A
mean 233.015086s (SD = 46.978684s)
Sync lag rate
The average number of created records discovered per agent.
All agents
mean 114.45/s
  • agent: uhCAkHtQzZd0sU2f9iPzRehNYlE0ROW1K5rXLA7UURLfG0sZVEkZ2
mean 69.44/s
  • agent: uhCAkZzOvoZyZ7XQG2-OqFgpbGjQOJpuWCrtxSfWt0wASSxaHcvn7
mean 191.56/s
  • agent: uhCAk_-DleVOyt6IhSvcoxJxF-f7s3jYQFxWeF4RvNANDCzD8qsbq
mean 238.33/s
  • agent: uhCAkkoWVWH_uQj7UC3Rnkrn3uqT0l1eDgTozEYKjhFcesDmdesR-
mean 26.9/s
  • agent: uhCAkxeVfLHcQV7lnrXbJ4V_FBXjOYWuvpPlJsn3zD05jnsWLmb9A
mean 46/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
Tue, 23 Dec 2025 01:26:05 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_20448549296
Zome call timing
The time elapsed between start of install and calling init.
mean 0.017255s (SD = 0.015405s)

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
Tue, 23 Dec 2025 01:28:15 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_20448549296
Send timing
The time taken to emit a batch of 10,000 signals.
mean 0.321829s (SD = 0.154458s)
Not enough time data to show a trend.
Receive timing
The time taken to receive the completed batch, to the nearest 250ms.
mean 30.323039s (SD = 0.154501s)
Not enough time data to show a trend.
Success ratio
The proportion of signals successfully received in a batch.
min 0.4810999929904938 < mean 0.581 (SD = 0.0839) < max 0.7627999782562256

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
Tue, 23 Dec 2025 01:30:22 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_20448549296
Dispatch timing
The time between sending a remote call and the remote handler being invoked.
All agents
mean 0.005369s (SD = 0.001239s)
  • agent: uhCAkBovI8JP4ulo5x6stkBOJ1FHHitDAFabIOztZNTncl4Og_SSU
mean 0.005371s (SD = 0.001245s)
  • agent: uhCAksg_2TQjmo65ng_tCdzMAAv0XHTtwoj67zQsrTUbws5OVK3Oq
mean 0.005366s (SD = 0.001232s)
Round-trip timing
The total elapsed time to get a response to the client.
All agents
mean 0.012372s (SD = 0.002148s)
  • agent: uhCAkBovI8JP4ulo5x6stkBOJ1FHHitDAFabIOztZNTncl4Og_SSU
mean 0.012371s (SD = 0.00215s)
  • agent: uhCAksg_2TQjmo65ng_tCdzMAAv0XHTtwoj67zQsrTUbws5OVK3Oq
mean 0.012372s (SD = 0.002145s)

Remote Signals

This scenario tests the throughput of remote_signals operations.

Started
Tue, 23 Dec 2025 01:32:41 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_20448549296
Round trip time
The time from origin signal dispatch to origin receive of the remote side's response signal.
mean 0.019127s (SD = 0.023785s)
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
Tue, 23 Dec 2025 01:34:44 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_20448549296
read call timing
The time it takes to complete the zome call that retrieves the record.
mean 0.00526s (SD = 0.001352s)
read call rate (10s)
The number of zome calls made in a 10-second window.
mean 1892.71/10s
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
Tue, 23 Dec 2025 01:52:15 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_20448549296
Highest observed action_seq
The change in the highest action index on the write peer's source chain.
54 ⬆ 2111 change: 3809.2592592592596% over 859.019189263s ( 2.39/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: uhCAkJK7utjydwRdJgtw3zQHLSnwoG3qoyJUCtSzaJsi_FrGhPMQu
mean 0.022543s (SD = 0.082086s)
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
Tue, 23 Dec 2025 01:36:50 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_20448549296
Write timing
The time it takes to complete the zome function call that writes the entry.
mean 0.106896s (SD = 0.33299s)
Write rate
The number of writes completed per second.
mean 66.86/s
Error count
The number of errors accumulated during the run.
0

Write/Read

Creates an entry and reads it back, then repeats.

Started
Tue, 23 Dec 2025 01:39:04 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_20448549296
Write timing
The time taken to write the entry.
mean 0.026951s (SD = 0.017073s)
Write rate
The number of writes completed per second.
mean 151.55/s
Read timing
The time taken to read the entry.
mean 0.038305s (SD = 0.021126s)
Read rate
The number of reads completed per second.
mean 151.55/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
Tue, 23 Dec 2025 01:41:22 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_20448549296
Write timing
The time it takes to complete the zome function call that writes the entry, updates it, and links to the update.
mean 0.059915s (SD = 0.031246s)
Write rate
The number of write zome function calls that complete per second.
mean 71.32/s
Read timing
The time it takes to complete the zome function call that reads the data.
mean 0.074409s (SD = 0.027542s)
Read rate
The number of read zome function calls that complete per second.
mean 71.36/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
Tue, 23 Dec 2025 01:54:17 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_20448549296
Highest observed action_seq
The change in the must_get_agent_activity peer's source chain top over the run.
16 ⬆ 1633 change: 10106.25% over 776.174865851s ( 2.08/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: uhCAkevLdev2UJ-tkNW1QQPY5bMDSgWzcgwBOGGFRhiSTudZj2kpw
mean 0.513723s (SD = 0.97643s)
Error count
The number of errors accumulated over the run.
45227

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
Tue, 23 Dec 2025 02:01:43 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_20448549296
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 122.24/s
  • agent: uhCAkC-mA1z5LezTSGYeE8RkLMkRRQvqF2BHbx2i9NdFsOT7zGHG6
mean 122.45/s
  • agent: uhCAkN11P4p-1mSiVxyzUftz3RYEEOsemhy5oLyV7kKZm-U1MgzH5
mean 69.32/s
  • agent: uhCAkXvw3j2mpB4zTje6m-AG9yekKciMkJIV_npALdKX-U0vkBqrj
mean 174.95/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.
  • agent: uhCAkvQr172NiFLv1JJocK9X2Krhx-g9VUHJioUFBOiIWkCxmoQ1D
mean 97.241317s (SD = 40.694951s)
Sync lag rate
The number of entries per second received by full nodes.
  • agent: uhCAkvQr172NiFLv1JJocK9X2Krhx-g9VUHJioUFBOiIWkCxmoQ1D
mean 75.22/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 5.48 (SD = 1.8) < max 7
zero-arc
min 2 < mean 5.1 (SD = 1.8) < max 7
Error count
The number of errors accumulated across all nodes.
2

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
Tue, 23 Dec 2025 01:56:23 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_20448549296
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 45.76/s
  • agent: uhCAk30BpvPWeAJUv0rvdGnVBjSLTm4aV1ZmR8K-OawxKmlT6XD4y
mean 14.62/s
  • agent: uhCAkDJtdrtBlwpRoq_uQodPPD0upr15zRtng2oRe58Szwqtv2ZHw
mean 22/s
  • agent: uhCAkIOb1OLpkUff5__Anp75Xf50k4lzHWWbksDWWLzdkmZn8l2MC
mean 41.91/s
  • agent: uhCAkS3Ezf_oLQL7QwrYufCkEnNm1xe5rhKYMDg_og5Sia2cbwsF5
mean 22.25/s
  • agent: uhCAkdc3gGoluEDjAtYzYBFMqrK-004cLxpuUX5eDeaiuJVaAUNRa
mean 159.2/s
  • agent: uhCAkioMYi-_62pb4Yk6nf-pI5-NFIijm5O6okUsuPU8QMb81x8eo
mean 14.57/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 4.802204772048853e+31s (SD = 9.944144534527237e+31s)
  • agent: uhCAkORm9H36pTyXYWATF6OjhS_8el770yJPlqoOA0t2gCmqkCSQT
mean 5.425347033162004e+31s (SD = 1.2457150659398232e+32s)
  • agent: uhCAkfcxMjcC60qAo6YWUDkVHbTLkMR4L5mDDBdDscFbZIgq2LmWQ
mean 6.364993913629065e+31s (SD = 1.326937722412666e+32s)
  • agent: uhCAkfhiYC6k-2a2GlzY2GXTdwD5wKiDFKFfTUt78SQ70qY5h3r6v
mean 7.418478141404345e+31s (SD = 1.4050050254584053e+32s)
  • agent: uhCAkprEmQYWud24FKWuyKLBbmRljEd0xBWQlQwR6Ye-ke4nvN46n
mean 689.185104s (SD = 38.356063s)
Not enough time data to show a trend.
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 89.48/s
  • agent: uhCAkORm9H36pTyXYWATF6OjhS_8el770yJPlqoOA0t2gCmqkCSQT
mean 196.33/s
  • agent: uhCAkfcxMjcC60qAo6YWUDkVHbTLkMR4L5mDDBdDscFbZIgq2LmWQ
mean 82/s
  • agent: uhCAkfhiYC6k-2a2GlzY2GXTdwD5wKiDFKFfTUt78SQ70qY5h3r6v
mean 79.6/s
  • agent: uhCAkprEmQYWud24FKWuyKLBbmRljEd0xBWQlQwR6Ye-ke4nvN46n
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 0 < mean 6.12 (SD = 2.7) < max 9
zero-arc
min 7 < mean 8.08 (SD = 0.58) < max 9
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
Tue, 23 Dec 2025 01:58:28 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_20448549296
Create rate
The number of timed entries created by the zero-arc node(s) per second.
All agents
mean 58.41/s
  • agent: uhCAk0VkR1zeh1KtiwjlO-vj5UQcGmvNlXoMHIQ4irqL_ptpxaBMf
mean 149/s
  • agent: uhCAk0bLfKgdrHQWjRCztEl9M_RRxjcBhJpGi30_wX8fAsjj1jHXN
mean 12.36/s
  • agent: uhCAk2nWlBLvkW-5CUhEDIIAqV9Gm_V6EdyBkqsz21ZpFl6nA0GIi
mean 117.78/s
  • agent: uhCAk62YXJFPJZHqOvpKbymqjKWHd6kR8nNzl_XsFp-aObVDqK-2w
mean 39.22/s
  • agent: uhCAkViSqIfmew-Ex5ZHbR_pVlS2OqsSLEnzx4CRE7qekfglCiQop
mean 12.28/s
  • agent: uhCAkVuLqn8edsh0Uda33H-L-6giQ9vuNXLW9G4OqwqWeLkhUszx9
mean 19.82/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 96.758643s (SD = 40.314569s)
  • agent: uhCAkMuiHIabI3nQGLU8n0PukcXPQYFeXdPofpDTyFnMKx-8GBWHq
mean 66.849748s (SD = 42.193199s)
  • agent: uhCAkfKL9tR34udK2SwwPugzABan9uyXVr6HcIv6x9VJb7CFchscG
mean 109.252069s (SD = 0.751905s)
Not enough time data to show a trend.
  • agent: uhCAkmtlZghLGmZpKuBqRo2glEsBJ82tqSf-QS22FGBLAAQlS__DJ
mean 166.290654s (SD = 79.078337s)
  • agent: uhCAkvNAIHEEdu4sL6C7JXuI6t9ivm08m2JYISHrAu0PH516zDszv
mean 44.642099s (SD = 39.234834s)
Sync lag rate
The number of entries per second received by full nodes.
All agents
mean 89.67/s
  • agent: uhCAkMuiHIabI3nQGLU8n0PukcXPQYFeXdPofpDTyFnMKx-8GBWHq
mean 167.5/s
  • agent: uhCAkfKL9tR34udK2SwwPugzABan9uyXVr6HcIv6x9VJb7CFchscG
mean 0/s
Not enough time data to show a trend.
  • agent: uhCAkmtlZghLGmZpKuBqRo2glEsBJ82tqSf-QS22FGBLAAQlS__DJ
mean 43.33/s
  • agent: uhCAkvNAIHEEdu4sL6C7JXuI6t9ivm08m2JYISHrAu0PH516zDszv
mean 147.86/s
Open connections
The number of currently open connections to other conductors.
full-arc
min 0 < mean 4.83 (SD = 3.22) < max 9
zero-arc
min 1 < mean 5.52 (SD = 1.52) < max 9
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
Tue, 23 Dec 2025 01:43:36 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_20448549296
Call timing
The time taken for the call to complete.
mean 0.006053s (SD = 0.009111s)
Call rate
The number of zome calls completed per second.
mean 1644.11/s
Error count
The number of errors accumulated during the run.
0