performance of inserting large objects

Hi, I have a performance problem when inserting large objects to IDS. An insert of 1 MB simple or smart large object takes about 5 seconds while selecting the same amount of data takes 0.1 second. When I use the function FILETOBLOB with "client" parameter, insert takes 5 seconds while when I use "server" parameter on the same file insert takes 0.1 second. 5.0 sec for: insert into smartblobtable (blobcolumn) values (FILETOBLOB("one_megabyte_file","clinet")); 0.1 sec for: insert into smartblobtable (blobcolumn) values (FILETOBLOB("one_megabyte_file","server")); I guess the problem is not in storing data itself but somewhere in the connection. It seems to me that the i/o is somehow optimized for reading not writing. My system is IDS 9.30 on Linux NETTYPE soctcp,1,50,NETsqlhosts uses onsoctcp Can anybody suggest me how to improve the performance ?