> Source: [sk180966](https://support.checkpoint.com/results/sk/sk180966)

# sk180966 - The CPU value in the output of  the "cpstat os -f cpu" command is not correct

| Property | Value |
|----------|-------|
| Solution ID | sk180966 |
| Date Created | 2023-05-17 |
| Last Modified | 2026-04-27 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |
| OS | Gaia |
| Platform | 5000 |

## Symptoms

- * The idle time period appears to be normal, but the actual CPU output is consistently incorrect, always maintaining the same value. Even when the CPU usage is at 90-100%, the output from the command remains constant.
* The output of the "cpstat os -f cpu" command is inaccurate.
* However, when inspecting the output of "cpstat os -f multi_cpu", the value is correct.

## Cause

In a setup with multiple CPUs, the problem comes from a mistake in how CPU values are calculated. In a single CPU system, values are taken directly from */proc/stat* . In a multi-CPU configuration, the issue arises because the cumulative amount repeatedly increases. Both SNMP and *cpstat*use this incorrect method, adding to the problem.

## Solution

This problem was fixed. The fix is included in:

* [Check Point R82](https://support.checkpoint.com/results/sk/sk181127)
* [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 43

If you choose not to upgrade, Check Point can supply a **Hotfix** . [Contact Check Point Support](https://www.checkpoint.com/support-services/.contact-support/) to get a Hotfix for this issue.  
A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.  
For faster resolution and verification, please collect [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597).

<br />

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content