how to avoid lock table, wait online

[liusz]

pls give me some advice.

I am using mysql to write a little thing. Two process operate on a same table, one just do insert again and again, each insert operation can take 2 or more seconds( thousands of records ),then sleep one second; another process run per 20seconds,read from this table , do some compute,then delete records have been processed, each process takes more than 8 seconds or even .

what terrible is this two process conflict while one do insert while another do delete, table is locked,so take much long time. How can I avoid locked table?