Unlimited number of search results in lucene

private SearchParameters getSearchParameters(final NodeRef nodeRef) {
  final SearchParameters params = new SearchParameters();
  params.addStore(StoreRef.STORE_REF_WORKSPACE_SPACESSTORE);
  params.setLanguage(SearchService.LANGUAGE_LUCENE);
  params.setQuery(format(QUERY_PATTERN, ContentModel.TYPE_CONTENT, nodeRef));
  params.setLimitBy(LimitBy.UNLIMITED);
  params.setLimit(0);
  params.setMaxPermissionChecks(100000);
  params.setMaxPermissionCheckTimeMillis(100000);
  params.setMaxItems(-1);
  return params;
 }

In addition in the alfresco-global.properties we can changed below values

system.acl.maxPermissionCheckTimeMillis 
system.acl.maxPermissionCheck

to get it reflcected across the system.