Why not do 1 feed then post at a time rather than save in memory?

[kh99]

I'm not sure if you're asking, but I think it would just be something like this (existing code starts around line 34, I added the part in red):

// #############################################################################
// slurp all enabled feeds from the database

$feeds_result = $vbulletin->db->query_read("
	SELECT rssfeed.*, rssfeed.options AS rssoptions, user.*, forum.forumid
	FROM " . TABLE_PREFIX . "rssfeed AS rssfeed
	INNER JOIN " . TABLE_PREFIX . "user AS user ON (user.userid = rssfeed.userid)
	INNER JOIN " . TABLE_PREFIX . "forum AS forum ON (forum.forumid = rssfeed.forumid)
	WHERE rssfeed.options & " . $vbulletin->bf_misc_feedoptions['enabled'] . "
           AND rssfeed.rssfeedid IN (1, 2, 3)
");

where of course you'd change the 1, 2, 3 for each file. You'd also want to disable the original rssposter.php task.

I don't have time to set things up to test it, but if you want to try it, I think it should work.