> Source: [sk106062](https://support.checkpoint.com/results/sk/sk106062)

# sk106062 - CPU load and traffic latency after activating Anti-Bot and/or Anti-Virus blade on Security Gateway

| Property | Value |
|----------|-------|
| Solution ID | sk106062 |
| Date Created | 2015-05-13 |
| Last Modified | 2018-08-15 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * After activating Anti-Bot and/or Anti-Virus blade and installing the Threat Prevention policy on Security Gateway:

  * CPU load on Security Gateway increases significantly (refer to the output of "*top* " / "*mpstat* " commands).   

  * Traffic throughput on Security Gateway decreases significantly; traffic latency is experienced.

    *Example for CIFS traffic*:
    * When only IPS blade is enabled (Anti-Bot and Anti-Virus blades are disabled):  
      * Internet speed is between 180-250 Mbit/sec, download and upload
      * CIFS data transfer between workstation and server is around 60-90 Mbit/sec
      * Ping latency is around 2-3 msec with or without CIFS data transfer
    * When both IPS blade and Anti-Bot / Anti-Virus blades are enabled:  
      * Internet speed is around 100 Mbit/sec, download and upload
      * CIFS data transfer between workstation and server is around 15 Mbit/sec
      * Ping latency is around 40-70 msec during CIFS data transfer
* Issue mostly occurs when passing complex traffic like CIFS, NFS, etc.

* Output of "*fwaccel conns*" command shows the involved complex traffic with either "S" flag, or "F" flag - the traffic goes via Medium path (PXL), or via Firewall path / Slow path (F2F) - i.e., traffic is not fully accelerated.

## Cause

The involved traffic is inspected by Anti-Bot / Anti-Virus blade even if it is not matched to any rule in the Threat Prevention policy.

## Solution

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