Very slow backup with no change

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svicar
Posts: 4
Joined: 16 Nov 2021, 13:18

Very slow backup with no change

Post by svicar »

I made first backup, when I start next backup with no changes on folder it take almost 15 minutes to do nothing
What can be wrong?
2021-11-16 11:46 The log tab has been cleared. The log file with its full content is still available from the Log menu
2021-11-16 11:46 *** A new backup has started. Number of tasks in queue: 1 ***
2021-11-16 11:46 Preventing the system from entering sleep mode...
2021-11-16 11:46 ** Backing up the task "backup na NAS" **
2021-11-16 11:46 Counting the files for the task "backup na NAS"...
2021-11-16 11:46 Starting the Volume Shadow Copy snapshot for the drives: D:\
2021-11-16 11:46 The Volume Shadow Copy snapshot set has been created successfully
2021-11-16 11:46 Backing up the directory "GLOBALROOT\Device\HarddiskVolumeShadowCopy6\programi robotov"
2021-11-16 12:00 Changing the history item to Parked. Reason: not creating separated backups
2021-11-16 12:00 Deleting the Volume Shadow Copy snapshot "0caa18ef-ac53-4bdc-836f-4b9cd5731a21"
2021-11-16 12:00 The Volume Shadow Copy snapshot set has been successfully deleted
2021-11-16 12:00 Total backup time for "backup na NAS": 0 hours, 14 minutes, 19 seconds
2021-11-16 12:00 ** Backup done for the task "backup na NAS". Errors: 0. Processed files: 15270. Backed up files: 0. Total size: 0 bytes **
2021-11-16 12:00 --
2021-11-16 12:00 The system can now enter sleep mode
2021-11-16 12:00 Total backup time: 0 hours, 14 minutes, 23 seconds
2021-11-16 12:00 *** Backup done. Errors: 0. Processed files: 15270. Backed up files: 0. Total size: 0 bytes ***
2021-11-16 12:00 --
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cobian
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Re: Very slow backup with no change

Post by cobian »

I guess this is an incremental or differential backup? Are you using the Archive attribute for the tasks?
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svicar
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Joined: 16 Nov 2021, 13:18

Re: Very slow backup with no change

Post by svicar »

Yes..incremental and used file atribute checked
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cobian
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Re: Very slow backup with no change

Post by cobian »

I see that it taks 14 minutes to process 15270 files. I guess the most of time goes by checking the existence of 15000 on the NAS,,,,Hmm.
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Luis Cobian
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svicar
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Re: Very slow backup with no change

Post by svicar »

soo...what to do?
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cobian
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Re: Very slow backup with no change

Post by cobian »

You can speed up a little the process by no copying the attributes and the timestamps.
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Luis Cobian
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svicar
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Re: Very slow backup with no change

Post by svicar »

Please look this: same folder, backup to the same location (NAS) with the same settings

from root system (windows 10)
2021-12-16 12:53 The log tab has been cleared. The log file with its full content is still available from the Log menu
2021-12-16 12:53 Preventing the system from entering sleep mode...
2021-12-16 12:53 ** Backing up the task "backup_test" **
2021-12-16 12:53 Counting the files for the task "backup_test"...
2021-12-16 12:53 Starting the Volume Shadow Copy snapshot for the drives: D:\
2021-12-16 12:53 The Volume Shadow Copy snapshot set has been created successfully
2021-12-16 12:53 Backing up the directory "GLOBALROOT\Device\HarddiskVolumeShadowCopy13\programi robotov\2 v vrsto"
2021-12-16 12:55 Changing the history item to Parked. Reason: not creating separated backups
2021-12-16 12:55 Deleting the Volume Shadow Copy snapshot "bbdff309-3349-4383-a04e-9541ab73e078"
2021-12-16 12:55 The Volume Shadow Copy snapshot set has been successfully deleted
2021-12-16 12:55 Total backup time for "backup_test": 0 hours, 2 minutes, 15 seconds
2021-12-16 12:55 ** Backup done for the task "backup_test". Errors: 0. Processed files: 2365. Backed up files: 0. Total size: 0 bytes **
2021-12-16 12:55 --
2021-12-16 12:55 The system can now enter sleep mode
2021-12-16 12:55 Total backup time: 0 hours, 2 minutes, 19 seconds
2021-12-16 12:55 *** Backup done. Errors: 0. Processed files: 2365. Backed up files: 0. Total size: 0 bytes ***
2021-12-16 12:55 --

same folder from virtual Box (windows 7)
2021-12-16 13:00 The log tab has been cleared. The log file with its full content is still available from the Log menu
2021-12-16 13:00 *** A new backup has started. Number of tasks in queue: 1 ***
2021-12-16 13:00 Preventing the system from entering sleep mode...
2021-12-16 13:00 ** Backing up the task "robot test" **
2021-12-16 13:00 Counting the files for the task "robot test"...
2021-12-16 13:00 Starting the Volume Shadow Copy snapshot for the drives: C:\
2021-12-16 13:00 The Volume Shadow Copy snapshot set has been created successfully
2021-12-16 13:00 Backing up the directory "GLOBALROOT\Device\HarddiskVolumeShadowCopy10\2 v vrsto"
2021-12-16 13:00 Changing the history item to Parked. Reason: not creating separated backups
2021-12-16 13:00 Deleting the Volume Shadow Copy snapshot "9f5f8bb2-9c01-4937-9664-a6b0c1aba6ab"
2021-12-16 13:00 The Volume Shadow Copy snapshot set has been successfully deleted
2021-12-16 13:00 Total backup time for "robot test": 0 hours, 0 minutes, 24 seconds
2021-12-16 13:00 ** Backup done for the task "robot test". Errors: 0. Processed files: 2365. Backed up files: 0. Total size: 0 bytes **
2021-12-16 13:00 --
2021-12-16 13:01 The system can now enter sleep mode
2021-12-16 13:01 Total backup time: 0 hours, 0 minutes, 28 seconds
2021-12-16 13:01 *** Backup done. Errors: 0. Processed files: 2365. Backed up files: 0. Total size: 0 bytes ***
2021-12-16 13:01 --
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cobian
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Re: Very slow backup with no change

Post by cobian »

In a virtal machine de hard drive is one big file. In the "real life", the files are several files and seeking in the disk will be often slower.
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MartinR
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Joined: 15 Nov 2021, 23:48
Location: England

Re: Very slow backup with no change

Post by MartinR »

If it's a VM, then it is possible that the host machine has cached a substantial part of it in memory, so the "seeks" are to memory, not to disk.
Mifuso
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Joined: 08 Dec 2021, 16:33

Re: Very slow backup with no change

Post by Mifuso »

I had a slow backup yesterday too but then I had to wait till night because Internet in the area where I have property in Spain was really slow due to a lot of tourists who came to celebrate here new year. So at night it was much faster
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