<![CDATA[Opera session backup absolutely trashes the hard drive]]>I recently noticed that my SSD has experienced much higher than expected disk write activity. I fired up some monitoring tools and found that, when Opera is running, the disk is just being hammered. Here is a screenshot of Disk Write activity over the course of a single second:

https://imgur.com/ltWJONr

This happens (essentially) continuously.

Also, check out Disk Activity from Winodws Resource Monitor. The first screenshot is taken with Opera not running, the second while Opera is running. .

https://imgur.com/a/4Balt

I'd file a bug report, but the bug reporting system is ill-equipped to submit issues such as this.

]]>https://forums.opera.com/topic/3614/opera-session-backup-absolutely-trashes-the-hard-driveRSS for NodeSun, 15 Mar 2026 14:18:59 GMTWed, 25 Jun 2014 17:55:55 GMT60<![CDATA[Reply to Opera session backup absolutely trashes the hard drive on Fri, 27 Jun 2014 20:09:21 GMT]]>Opera writes session.* files to disk each ~10 seconds. They are SQLite databases and can grow. I've had a 4 MB session.db once. You can imagine how this would affect my SSD, if it wasn't on a RAM disk.

To reduce writing onto SSD, move session.* files to a RAM disk, replacing them in the original profile with NTFS symlinks.

To reduce the file sizes if they've grown too big:
If you want to keep session content (remember which pages you have open), use the command,
sqlite3 session.db "VACUUM;"
(get sqlite3 from http://www.sqlite.org/download.html)
Or, if you don't care about sessions, just delete the files. Opera will re-create them.

]]>https://forums.opera.com/post/43714https://forums.opera.com/post/43714Fri, 27 Jun 2014 20:09:21 GMT<![CDATA[Reply to Opera session backup absolutely trashes the hard drive on Thu, 26 Jun 2014 01:22:14 GMT]]>Is there any particular site or some number of tabs open while this occurs, or is it independent of those factors?

]]>https://forums.opera.com/post/43475https://forums.opera.com/post/43475Thu, 26 Jun 2014 01:22:14 GMT<![CDATA[Reply to Opera session backup absolutely trashes the hard drive on Wed, 25 Jun 2014 18:27:20 GMT]]>Update: Is it possible that most of this sits in file cache and doesn't make it to the physical disk?

]]>https://forums.opera.com/post/43450https://forums.opera.com/post/43450Wed, 25 Jun 2014 18:27:20 GMT