If you want a fast and reliable diskcache partition, download SFS
Create a 100MB partition
If you have enough RAM:
dosbuffers 512
blocksize 512 bytes (always with SFS)
when you will format the SFS partition, format it WITHOUT the recycled dir
SFSFormat DEVICE YOURPART: NAME POO NORECYCLED
Then you can gain the performances, using SFSConfig (it eats some memory)
i.e
SFSConfig <>NIL: DeviceNameOfYourPartition: 32 32768 107 60 2 COPYBACK
where 32 and 32768 are the cachelines used (try other values as well) max 100 32768
NOTE- the settings made with SFSConfig, are not permanent.
Type it in a shell and test. When you have found the better performances, slap the line in UserStartup.