Since yesterday, I am experiencing slow responses to I/O-heavy operations. When looking at CPU, memory, etc. I saw a cycle of roughly a minute when the computer seems to be blocked, then a minute of regular activity, then again a minute blocked.
"Blocked" means that there seems to be no I/O activity on any of the drives (3 physical ones, 5 logical, plus 1 veracrypt which is not shown in resource monitor). Resource Monitor shows the throughput and queue length to fall to 0 (sic!) for a minute, although a program actually is waiting for I/O. After the minute, activity is resumed.
The device list ("Datenträger" in German) of the resource monitor shows literally hundreds of vsserv.exe calls (distributed across a handful of vsserv.exe PIDs), most of them writing to a file ecal.db-journal in the BD program directory. The file seems to be created and deleted permanently, as the file explorer shows this file to exist or not exist while showing the directory’s content. When activity resumes at the end of the minute, these vsserv.exe entries go away, and the device list contains only a handful entries, which are quickly filled again by vsserve.exe entries.
The pattern does not seem to be related to actual I/O requests, it’s visible whether or not a program requests I/O. It’s independent of whether the computer is connected to the internet. The Bitdefender UI is affected as well (no response during a blocked phase).
When left alone (no user interaction), the Bitdefender UI oscillates between "Your Device is at risk" (I turned off protection) and "Services not responding" (as though it did not have internet connection, although the laptop is connected), in a rythm slightly offset from the block/unblock phases.
I am running Windows 8.1 on an Acer laptop, with Bitdefender Antivirus Free 188.8.131.52 (engine 7.88599).
EDIT: After finishing this question, I wanted to turn BD protection on again, but got "Failed to activate. Please retry"…
✓ Extra quality
ExtraProxies brings the best proxy quality for you with our private and reliable proxies
✓ Extra anonymity
Top level of anonymity and 100% safe proxies – this is what you get with every proxy package
✓ Extra speed
1,ooo mb/s proxy servers speed – we are way better than others – just enjoy our proxies!
USA proxy location
We offer premium quality USA private proxies – the most essential proxies you can ever want from USA
Our proxies have TOP level of anonymity + Elite quality, so you are always safe and secure with your proxies
Use your proxies as much as you want – we have no limits for data transfer and bandwidth, unlimited usage!
Superb fast proxy servers with 1,000 mb/s speed – sit back and enjoy your lightning fast private proxies!
99,9% servers uptime
Alive and working proxies all the time – we are taking care of our servers so you can use them without any problems
No usage restrictions
You have freedom to use your proxies with every software, browser or website you want without restrictions
Perfect for SEO
We are 100% friendly with all SEO tasks as well as internet marketing – feel the power with our proxies
Buy more proxies and get better price – we offer various proxy packages with great deals and discounts
We are working 24/7 to bring the best proxy experience for you – we are glad to help and assist you!