FAQs about McShield.exe and high CPU utilization when running on-demand scans
技术文章 ID:
KB85299
上次修改时间: 6/23/2020
上次修改时间: 6/23/2020
FAQs about McShield.exe and high CPU utilization when running on-demand scans
技术文章 ID:
KB85299
上次修改时间: 6/23/2020 环境
McAfee VirusScan Enterprise (VSE) 8.8 Patch 5 and later For details about the VSE 8.8 supported environments, see KB51111. 摘要Customers who upgrade from VSE 8.8 Patch 4 to Patch 5 might report higher CPU utilization when they run on-demand scans (ODS). This issue is not necessarily a sign of incorrect function.
Why was this higher CPU use not happening in Patch 4?This issue was most likely because Patch 4 contained a known issue where it used only one scanning thread during ODS. This issue is resolved in Patch 5. This new design results in higher CPU utilization during ODS. What changes were made in Patch 5 for this specific behavior? Engineering resolved the thread count issue from Patch 4. Multiple threads are now used to finish the scan faster. This resolution is documented in the VSE 8.8 Patch 5 Release Notes. Is there a safeguard in place to prevent CPU use from exceeding a certain percentage for the process? No. This feature does not currently exist. To submit a new product idea, go to: https://community.mcafee.com/t5/Enterprise-Product-Ideas/idb-p/business-ideas.
The Ideas forum is accessible only to McAfee business and enterprise customers. Click Sign In and enter your McAfee ServicePortal (https://support.mcafee.com) User ID and password. If you do not yet have a McAfee ServicePortal or McAfee Community account, click Register to register for a new account on either website. For more information about product ideas, see KB60021 - How to submit a Product Idea. NOTE: The Ideas forum replaces the previous Product Enhancement Request system. Does McAfee recommend that I stay on Patch 4 to prevent this issue? No. Although the Patch 5 ODS uses higher CPU, scans finish faster. The product development team recommends that you upgrade to Patch 5 when it is approved for your environment, because it also contains useful security updates. Why would ODS use 95% CPU utilization when VSE was set to use low resources? This issue relates to how the Windows Set priority Control API works. The VSE uses this API for system resource utilization. In turn, it allows the operating system to determine the resource utilization and assignment function. For more details KB55145. If settings on the performance tab do not change this behavior, why is that option available? Setting the system utilization on the performance tab to Low provides improved performance for other running applications. The Low setting is useful for systems with high user activity. Conversely, by setting the system utilization to normal, the scan completes faster. The normal setting is useful for systems that have large volumes and little user activity. For more details, see the "Configuring Performance Improvements" section of the VirusScan Enterprise 8.8 Best Practices Guide. You can also make the following adjustments to ODS settings to improve performance, as needed:
相关信息VSE 8.8 Patch 16 is the latest patch available from the Downloads tab on the ServicePortal at https://support.mcafee.com/downloads.
NOTE: VSE 8.8 Patch 16 supports all supported Windows operating systems. 技术术语词汇表 |
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