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Are you seeing increased scan times with clamwin 0.88.1?
Yes
57%
 57%  [ 4 ]
No
42%
 42%  [ 3 ]
Total Votes : 7

phil-th


Joined: 22 Apr 2006
Posts: 3
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I have spent the last few days running scheduled scans with the various versions. Since the scans were conducted over a period of a few days, the amount of data scanned fluctuates a bit. Scanning with 0.88 took about 3.6 hours. A scan using 0.88.1 (Cygwin) took the same amount of time. After that I scanned with 0.88.1 again. The scheduled scan ran through the night and it was still running in the morning when I checked it (at about 8.5 hours into the scan). I noticed that ClamTray.exe was using up the CPU and had used significantly more of the CPU than clamscan.exe, so I set ClamTray.exe's priority to "Below Normal" and set clamscan.exe up to "Normal". This allowed the scan to actually finish with a total run time of about 9.2 hours. It seems that the reason the scans couldn't finish in one night was because ClamTray.exe was using up the CPU (as has been addressed in another thread and already fixed by alch).

Last night I ran a scheduled scan using 0.88.1.2 which took about 4 hours. While it is good news that the scanning is now back to the "normal" time (comparing with 0.88 and 0.88.1-cygwin), unfortunately there seems to be no speed increase from the removal of the cygwin layer, as other users have experienced.

The full logs from these four scans are posted below. I will try running a scheduled scan tonight using the new 0.88.2.1 version and post the result.

Here's my computer specs:
Athlon 64 3200+ (Venice core)
1GB DDR 400 (Kingston)
Seagate 200GB 7200 SATA
ASUS A8N5X (Nvidia Nforce4 drivers)

- phil

BTW, thanks for all the help/work alch - it's appreciated!

Quote:
--------------------------------------
ClamWin 0.88
Scan started: Thu Apr 27 07:08:00 2006

ERROR: Can't open file C:\WINDOWS\SoftwareDistribution\EventCache\{3175A996-BE93-4481-83CF-8E82BC69D521}.bin
ERROR: Can't open file C:\WINDOWS\system32\CatRoot2\tmp.edb
ERROR: Can't open file C:\WINDOWS\system32\config\default
ERROR: Can't open file C:\WINDOWS\system32\config\SAM
ERROR: Can't open file C:\WINDOWS\system32\config\SECURITY
ERROR: Can't open file C:\WINDOWS\system32\config\software
ERROR: Can't open file C:\WINDOWS\system32\config\system
ERROR: Can't open file C:\WINDOWS\system32\drivers\dtscsi.sys
ERROR: Can't open file C:\WINDOWS\system32\drivers\sptd.sys
ERROR: Can't open file C:\WINDOWS\system32\drivers\sptd1661.sys

-- summary --
Known viruses: 53066
Engine version: 0.88
Scanned directories: 4960
Scanned files: 53635
Infected files: 0
Data scanned: 54479.10 MB
Time: 13063.632 sec (217 m 43 s)


--------------------------------------
ClamWin 0.88.1 (Cygwin)
Scan started: Thu Apr 27 23:00:01 2006

ERROR: Can't open file C:\WINDOWS\system32\config\default
ERROR: Can't open file C:\WINDOWS\system32\config\SAM
ERROR: Can't open file C:\WINDOWS\system32\config\SECURITY
ERROR: Can't open file C:\WINDOWS\system32\config\software
ERROR: Can't open file C:\WINDOWS\system32\config\system
ERROR: Can't open file C:\WINDOWS\system32\drivers\dtscsi.sys
ERROR: Can't open file C:\WINDOWS\system32\drivers\sptd.sys
ERROR: Can't open file C:\WINDOWS\system32\drivers\sptd1661.sys

-- summary --
Known viruses: 53081
Engine version: 0.88.1
Scanned directories: 5008
Scanned files: 53957
Infected files: 0
Data scanned: 54872.44 MB
Time: 12911.312 sec (215 m 11 s)

--------------------------------------
ClamWin 0.88.1
Scan started: Sat Apr 29 00:48:00 2006

ERROR: Can't open file C:/pagefile.sys
ERROR: Can't open file C:/WINDOWS/SoftwareDistribution/EventCache/{2004311B-DE79-48A4-9DE0-CEE0C2F7B965}.bin
ERROR: Can't open file C:/WINDOWS/system32/drivers/dtscsi.sys
ERROR: Can't open file C:/WINDOWS/system32/drivers/sptd.sys
ERROR: Can't open file C:/WINDOWS/system32/drivers/sptd1661.sys

-- summary --
Known viruses: 53123
Engine version: 0.88.1
Scanned directories: 4990
Scanned files: 51474
Infected files: 0
Data scanned: 56055.54 MB
Time: 33220.593 sec (553 m 40 s)

--------------------------------------
ClamWin 0.88.1.2
Scan started: Sun Apr 30 00:09:00 2006

ERROR: Can't open file C:/pagefile.sys
ERROR: Can't open file C:/WINDOWS/SoftwareDistribution/EventCache/{FFC319C2-7379-4148-A81B-715967D77607}.bin
ERROR: Can't open file C:/WINDOWS/system32/drivers/dtscsi.sys
ERROR: Can't open file C:/WINDOWS/system32/drivers/sptd.sys
ERROR: Can't open file C:/WINDOWS/system32/drivers/sptd1661.sys

-- summary --
Known viruses: 53123
Engine version: 0.88.1
Scanned directories: 5121
Scanned files: 52764
Infected files: 0
Data scanned: 57556.76 MB
Time: 14249.359 sec (237 m 29 s)
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phil-th


Joined: 22 Apr 2006
Posts: 3
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Scanning with 0.88.2.1 results in similar scan times (around 4 hours on my system).
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GlueGuy


Joined: 03 Mar 2006
Posts: 15
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Good work on the latest 0.88.2(.1) release of Clamwin!

It doesn't seem to be quite as fast as 0.88, but it is noticeably faster than 88.1

For the record, on the same AMD sempron I got the following nominal scan rates:

0.88: ~~ 56 MB/minute
0.88.1: ~~ 43 MB/minute
0.88.2.1: ~~ 49 MB/minute

So that makes 0.88.2.1 a 14% speed improvement over 88.1, but still about 11% slower than 0.88.
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budtse


Joined: 14 Jan 2006
Posts: 372
Location: Belgium
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Just benchmarked the new release (0.88.2.1).
I also did some calculations on all results, taking 0.88 as a reference to compare speeds:
(apologies for the messy layout, don't know how to put a table in bb code)

Code:

=====================================================================
|Version       | Scanned Files | Scanned MB |  Time  | MB/min |  %  |
=====================================================================
|0.88   cygwin | 9064          | 2529.90    | 67m26s | 37.52  | 100 |
|0.88.1 cygwin | 9064          | 2532.96    | 65m21s | 38.76  | 103 |
|0.88.1        | 9064          | 2733.88    | 72m46s | 37.57  | 100 |
|0.88.1.2      | 9064          | 2733.88    | 68m15s | 40.06  | 107 |
|0.88.2.1      | 9064          | 2733.88    | 67m54s | 40.26  | 107 |
=====================================================================


It actually seems that Clamwin is really gaining speed, although the newer versions take slightly longer to run (they scan more megabytes, so they should be safer).
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88.1 uses 30% more cpu than before?
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