When we wrote about the Google-data backup application CloudPull 2.0, the most obvious problem was its performance when bringing in large quantities of email from Gmail (see “Back Up Your Google Data with CloudPull,” 6 March 2012). John Brayton of Golden Hill Software took note of this, and improved the performance significantly in CloudPull 2.0.2 by addressing inefficiencies in how CloudPull interacted with Gmail via IMAP. But that has remained his focus for the just-released CloudPull 2.1, where he has enabled CloudPull to use four simultaneous connections for far faster performance yet. That in turn tends to set off Gmail’s throttling for clients that use excessive bandwidth, so CloudPull 2.1 also restricts itself to 5000 messages per backup cycle to avoid being throttled. As a result, initial backups can still take a while, but subsequent backups can be over 10 times faster than 2.0.2. Equally important from the perceptual standpoint, CloudPull 2.1 now has an Activity window that tells you what the app is doing and provides progress bars. Other changes include a Check for Updates menu item, improved usability in the Google Accounts preference pane, a text-label switch from Google Docs to Google Drive, pagination of lists with over 1000 items, and retry and backoff logic to make individual backup cycles more resilient to connectivity problems and errors from Google. CloudPull 2.1 requires Mac OS X 10.7 Lion; version 1.5.7 remains available for those running 10.6 Snow Leopard. ($24.99 new, free update, 7.6 MB, release notes)
Syslogd Overwhelming Your Computer?
If your Leopard (Mac OS X 10.5) system is unexpectedly sluggish, logging might be the culprit. Run Activity Monitor (Applications/Utilities/ folder), and click the CPU column twice to get it to show most to least activity. If syslogd is at the top of the list, there's a fix. Syslogd tracks informational messages produced by software and writes them to the asl.db, a file in your Unix /var/log/ directory. It's a known problem that syslogd can run amok. There's a fix: deleting the asl.db file.
Launch Terminal (from the same Utilities folder), and enter these commands exactly as written, entering your administrative password when prompted:
sudo launchctl stop com.apple.syslogd
sudo rm /var/log/asl.db
sudo launchctl start com.apple.syslogd
Your system should settle down to normal. For more information, follow the link.
- Back Up Your Google Data with CloudPull (06 Mar 12)