I experience a slowdown during XUD
When the system is checking for work to be sent or processed by cross updating we have noticed some machines seem to run slower than others. At present we are unable to isolate this to a specific piece of hardware, specific version of Premvet, specific version of the Operating System.
The main cause is the system has to scan for all new attachments added to your system and send them to the remote sites and has to make sure all the files received are readable by you. The commands that do this are very disk intensive and this can affect other processes.
We have added some new options that can be enabled on slow machines that experience this.
You need to use either:
- Admin menu -> Cross Updating -> Utilities -> a
- xmenu -> Utilities -> a
- Edit
/etc/call_infowith an editor
The option you need to add can be one of:
USE_FIND = xxx
| Run through attachments and set access permissions to allow every one to read/write them. Normally you will want this to happen on every pass. Depending on how your system is setup the user names may be the same on both sites so is not really needed. |
USE_CHMOD = xxx | Run through all files set access permissions to allow global access. Only really needed if specific files are sent - the system should set this automatically - this option is just a fail safe. |
USE_MON = xxx | If the above two option as are to Yes this setting is not needed. If this is set to Yes the 1st time x_check run in the week it will automatically run the above two. As the 1st pass is usually early Sunday morning any delays are not obvious. |
Where xxx is either Yes or No.
As the speed issues are more obvious on OSR 6 the defaults are set as follows:
| Operating System | OSR 5.0.6 OSR 5.0.7 | OSR 6.0.0 |
|---|---|---|
| USE_FIND | Yes | No |
| USE_CHMOD | Yes | No |
| USE_MON | No | Yes |
If you are seeing speed issues, try setting USE_FIND = No first, let it run a few days and then try USE_CHMOD = No.
Please make sure you have the GNU Tools maintenance pack installed as this can also help speed up the find/chmod commands.
With Premvet release 03.02.02 the system will set the attachment permissions 'as it goes' - so, on OSR 5 machines, it is recommended you set:
USE_FIND=No USE_CHMOD=No