> Source: [sk181264](https://support.checkpoint.com/results/sk/sk181264)

# sk181264 -  High CPU is consumed when there are many rules with apps in the Access Rule Base.

| Property | Value |
|----------|-------|
| Solution ID | sk181264 |
| Date Created | 2023-09-10 |
| Last Modified | 2023-09-10 |
| Technical Level | General |
| Products | Security Gateway, Scalable Platforms |
| Versions | R81.10 (EOS), R81 (EOS), R81.10 (EOS), R81 (EOS) |

## Symptoms

- The output of "*perf top -C FW instance CPUID* " shows these functions causing high CPU utilization:  
`
wsis_lst_data `  
` up_column_merge_sorted_rulenum_list_into_lkdlist`

## Cause

When there are many apps in the rule Base, it takes longer to detect a specific app because there are lots of rules to combine for each app.

## Solution

This problem was fixed. The fix is included starting from:

* [Check Point R81.20](https://support.checkpoint.com/results/sk/sk173903)
* [Check Point R81.10 Jumbo Hotfix Take 113](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/R81.10/Introduction.htm)

Check Point recommends to always upgrade to the [Recommended version](https://support.checkpoint.com/results/sk/sk95746) ([Security Gateway](https://support.checkpoint.com/product/Quantum/73) / [VSX](https://support.checkpoint.com/product/Quantum/359) / [Security Management Server](https://support.checkpoint.com/product/Quantum/184) / [Multi-Domain Security Management Server](https://support.checkpoint.com/product/Quantum/166) / [SmartConsole](https://support.checkpoint.com/product/Quantum/191)).

If you choose not to upgrade, [contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for your version.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing it.  
For faster resolution and verification, collect [CPinfo](https://support.checkpoint.com/results/sk/sk92739) files from the Management Server and Security Gateways / Cluster Members involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).

---

# 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