If you delete 5000 items the delay between deletions is about 10 seconds, for 50000 items it is more than minute (so firefox seems to be stuck) - this is on desktop core i7, so on some netbooks that could be much worse. The second to last needs about 1 second, third to last about 1.5 seconds. The deletion of only one batch is fast (you select 300 items, press Delete and in about 0.5 sec the items are deleted)īut if you select more, then only the last batch needs 0.5 seconds to be deleted. Deleting about 50000 entries (some of my profiles have even more items in history) needs several HOURS.ĭeleting from history should be much faster. ĭeleting about 4000 entries took several minutes. This suggests some O(n^2) algorithm is there. The interval between deletion batches approached to zero as number of entries that are to be deleted approached to zero. After another 10 seconds another burst of harddrive activity and next 300 entries were deleted. SetTimeout('window.location='this_file.html?'+Math.random() ',20) Īfter about 10 seconds, I heard some harddrive noise and first 300 entries were removed. (File like this can be used to artificially create large browsing history quite quickly for testing) Filter them by some string to see about 4000 entries. Open your browsing history with approx 5000 entries.Ģ.
