Performance recorder in Tableau - Cell-by-Cell Formula Trace

Sample Data

This data shows dashboard names and their load times in seconds, recorded by Tableau Performance Recorder.

Cell	Value
A1	Dashboard Name
B1	Load Time (seconds)
A2	Sales Overview
B2	3.2
A3	Customer Analysis
B3	4.5
A4	Profit Trends
B4	2.8

Formula Trace

AVERAGE([Load Time (seconds)])

Step 1: List of load times: {3.2, 4.5, 2.8}

Step 2: Sum of load times: 3.2 + 4.5 + 2.8

Step 3: Count of load times: 3

Step 4: Average load time = 10.5 / 3

Cell Reference Map

     A               B
1 | Dashboard Name | Load Time (seconds) |
2 | Sales Overview| 3.2                |
3 | Customer Analysis| 4.5              |
4 | Profit Trends | 2.8                |

The formula references the 'Load Time (seconds)' column cells B2, B3, and B4 to calculate the average.

Result

     A               B
1 | Dashboard Name | Load Time (seconds) |
2 | Sales Overview| 3.2                |
3 | Customer Analysis| 4.5              |
4 | Profit Trends | 2.8                |
5 | Average Load Time | 3.5             |

The average load time of 3.5 seconds is shown below the load times, summarizing dashboard performance.

Sheet Trace Quiz - 3 Questions

Which cells are used to calculate the average load time?

A B2, B3, B4

B A2, A3, A4

C A1, B1

D B1, B2, B3

Key Result

AVERAGE calculates the sum of values divided by their count to find the mean.

Practice

1. What is the main purpose of Tableau's Performance Recorder?

easy

A. To export data to Excel

B. To create new visualizations automatically

C. To find slow parts in your Tableau workbook

D. To connect to new data sources

Solution

1. Step 1: Understand Performance Recorder's role

   Performance Recorder is designed to help identify which parts of a Tableau workbook are slow.

2. Step 2: Compare options with this purpose

   Options A, B, and D describe other Tableau features, not Performance Recorder.

3. Final Answer:

   To find slow parts in your Tableau workbook -> Option C

4. Quick Check:

   Performance Recorder = Find slow parts [OK]

Hint: Remember: Performance Recorder finds slow workbook parts [OK]

Common Mistakes:

• Confusing Performance Recorder with data export tools
• Thinking it creates visualizations automatically
• Assuming it connects to data sources

2. Which menu in Tableau do you use to start the Performance Recorder?

easy

A. Data menu

B. Dashboard menu

C. Worksheet menu

D. Help menu

Solution

1. Step 1: Recall where Performance Recorder is located

   Performance Recorder is started and stopped from the Help menu in Tableau.

2. Step 2: Eliminate other menus

   Data, Worksheet, and Dashboard menus do not contain Performance Recorder controls.

3. Final Answer:

   Help menu -> Option D

4. Quick Check:

   Start Performance Recorder = Help menu [OK]

Hint: Performance Recorder is under Help menu [OK]

Common Mistakes:

• Looking under Data menu instead of Help
• Trying to start from Worksheet or Dashboard menus
• Not knowing where to find Performance Recorder

3. After recording performance in Tableau, what is the output you get?

medium

A. A new workbook showing detailed timing for each action

B. A CSV file with all data source queries

C. A dashboard with automatic recommendations

D. A log file saved in the Tableau installation folder

Solution

1. Step 1: Identify the output of Performance Recorder

   Performance Recorder creates a new Tableau workbook that shows detailed timing for each action performed during recording.

2. Step 2: Compare with other options

   Options B, C, and D describe outputs unrelated to Performance Recorder's actual output.

3. Final Answer:

   A new workbook showing detailed timing for each action -> Option A

4. Quick Check:

   Performance Recorder output = New workbook with timings [OK]

Hint: Output is a new workbook with timing details [OK]

Common Mistakes:

• Expecting a CSV file instead of a workbook
• Thinking it generates automatic recommendations
• Looking for a log file in installation folders

4. You started Performance Recorder but forgot to stop it. What is the likely issue?

medium

A. No performance data will be saved until you stop recording

B. Tableau will automatically stop recording after 5 minutes

C. Performance data will be saved but incomplete

D. Tableau crashes due to continuous recording

Solution

1. Step 1: Understand how Performance Recorder works

   Performance Recorder only saves data when you stop the recording explicitly.

2. Step 2: Evaluate other options

   Tableau does not auto-stop recording, nor does it crash from continuous recording. Partial data is not saved until stop.

3. Final Answer:

   No performance data will be saved until you stop recording -> Option A

4. Quick Check:

   Stop recording to save data [OK]

Hint: Always stop recording to save performance data [OK]

Common Mistakes:

• Assuming Tableau auto-stops recording
• Thinking partial data is saved automatically
• Believing continuous recording causes crashes

5. You want to improve a slow dashboard. After using Performance Recorder, you see long times in 'Query Execution' and 'Layout'. What should you do next?

hard

A. Increase the number of worksheets in the dashboard

B. Optimize data source queries and simplify dashboard layout

C. Disable Performance Recorder and refresh the dashboard

D. Add more filters to the dashboard to reduce data

Solution

1. Step 1: Interpret Performance Recorder timings

   Long 'Query Execution' means slow data queries; long 'Layout' means complex dashboard design.

2. Step 2: Choose actions to address these issues

   Optimizing queries and simplifying layout directly target these slow parts.

3. Step 3: Evaluate other options

   Adding worksheets or filters may increase complexity or not address root causes; disabling recorder does not improve speed.

4. Final Answer:

   Optimize data source queries and simplify dashboard layout -> Option B

5. Quick Check:

   Fix queries + layout = faster dashboard [OK]

Hint: Fix slow queries and layout to speed dashboard [OK]

Common Mistakes:

• Adding more worksheets increases complexity
• Disabling recorder does not improve speed
• Adding filters may not reduce query time