McAfee VIRUSSCAN ENTERPRISE 8.7I PATCH 4 - S Guía de instalación descargar pdf (Pagina 6)

Delayed Write Scan mode is now

enabled by default.

This mode delays all scans of

modified files to lower priority

background threads. This improves

performance for processes that

write data to disk frequently and/or

write a lot of data in a short

amount of time.

Important

To maintain security,

you must enable the

Scan on Read

setting.

Removable media and network file

share write operations are still

scanned immediately on Close.

For more information, see

KnowledgeBase article

KB75374.

•

32-bit systems:

HKLM\Software\McAfee\SystemCore\VSCore\On Access

Scanner\McShield\Configuration:

◦ DelayAllWriteScans

◦ BackGroundAllDelayedScans

•

64-bit systems:

HKLM\SOFTWARE\Wow6432Node\McAfee\SystemCore\VSCore\On

Access Scanner\McShield\Configuration:

◦ DelayAllWriteScans

◦ BackGroundAllDelayedScans

1 (enabled)

On-Demand Scanner is now

limited to one thread per CPU, 6

threads total by default. This limits

the amount of memory used by

ODS.

•

To activate this feature, the

System utilization slider setting

(on the On-Demand Scan

Properties, Performance tab)

must be set to Below Normal.

•

To change the maximum

number of threads, set the

DWORD value.

•

To deactivate this feature, set

the DWORD value to "0".

•

32-bit systems:

HKLM\SOFTWARE\McAfee\DesktopProtection\Tasks:

◦ dwUserDefinedMaxThreads

•

64-bit systems:

HKLM\SOFTWARE\Wow6432Node\McAfee\DesktopProtection\Tasks:

◦ dwUserDefinedMaxThreads

6 (maximum

number of

threads)

Artemis performance is increased

when scanning large files.

Large files are now hashed and, in

parallel with the scan, an Artemis

query runs to determine whether

the file is known to be clean. If so,

the scan stops.

Note

The Artemis query runs

regardless of the sensitivity

level.

Because hashes are cached, future

scans can use the existing hash if

the file hasn't been modified.

By default, files larger than 5MB

•

32-bit systems:

HKLM\SOFTWARE\McAfee\SystemCore\VSCore:

◦ PreScanSizeKBForArtemisScan

•

64-bit systems:

HKLM\SOFTWARE\Wow6432Node\McAfee\SystemCore\VSCore:

◦ PreScanSizeKBForArtemisScan

5000

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