Thanks all for reporting scan time issues with the recent update. We are working to reduce the scan time caused by the recent signature update.
Sorry for the delayed response. I actually thought I'd clicked send on this. Best, Val Val Snyder (she/they) ClamAV Development Talos Cisco Systems, Inc. ________________________________ From: clamav-users <[email protected]> on behalf of Steve Basford via clamav-users <[email protected]> Sent: Tuesday, July 29, 2025 10:24 AM To: ClamAV users ML <[email protected]> Cc: Steve Basford <[email protected]> Subject: Re: [clamav-users] Time taken to complete scan recently doubled On 29 July 2025 10:58:51 Mark Allan via clamav-users <[email protected]> wrote: We're seeing the same thing here. We mirror the DB for ClamXAV users but we do a Mac-specific FP test first which usually takes around 3.5 hours on a fast Mac. Daily DB version 27709 took 3 hours 20 minutes whereas version 27710 took 12 hours 46 minutes Only to add...Lots of sigs added in 22710... https://lists.clamav.net/pipermail/clamav-virusdb/2025-July/009095.html Mark On 29 Jul 2025, at 9:22 am, Karl Pielorz via clamav-users <[email protected]> wrote: --On 28 July 2025 16:33 -0700 Daniel Sotirhos via clamav-users <[email protected]> wrote: Hi Starting July 25th we've seen the time taken to complete a scan of our system double, jumping from 15 hours up to 34. We haven't changed the system's configuration, and the number of files scanned and total size has remained relatively constant. fwiw - We've seen similar here. We do a lot of ad-hoc scans of files etc. The increase in scan time correlates with an update of the daily database from version 27709 to 27710. Since around this change we've noticed a lot of latency on systems ahead of clamav - which seems to be caused by scans slowing down - and massively increased load averages on the scanning machines themselves :( -Karl _______________________________________________ Manage your clamav-users mailing list subscription / unsubscribe: https://lists.clamav.net/mailman/listinfo/clamav-users Help us build a comprehensive ClamAV guide: https://github.com/Cisco-Talos/clamav-documentation https://docs.clamav.net/#mailing-lists-and-chat _______________________________________________ Manage your clamav-users mailing list subscription / unsubscribe: https://lists.clamav.net/mailman/listinfo/clamav-users Help us build a comprehensive ClamAV guide: https://github.com/Cisco-Talos/clamav-documentation https://docs.clamav.net/#mailing-lists-and-chat Cheers, Steve Twitter: @sanesecurity
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