From: Nick Pollitt <npollitt@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: HUGETLB pages on multiple nodes
Date: Mon, 14 Jul 2003 19:20:37 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105821072317881@msgid-missing> (raw)
Seth, It looks like at boot time all the hugepages will get allocated
on the boot node. We'd like to spread the pages across multiple nodes
on NUMA systems. Here's a simple patch to round-robin the pages during
kernel init. Comments?
Nick
=== arch/ia64/mm/hugetlbpage.c 1.2 vs edited ==--- 1.2/arch/ia64/mm/hugetlbpage.c Mon May 19 09:18:44 2003
+++ edited/arch/ia64/mm/hugetlbpage.c Thu Jul 10 11:35:05 2003
@@ -419,7 +419,12 @@
struct page *page;
for (i = 0; i < htlbpage_max; ++i) {
+#ifdef CONFIG_NUMA
+ int node = i % num_memblks;
+ page = alloc_pages_node(node, __GFP_HIGHMEM, HUGETLB_PAGE_ORDER);
+#else
page = alloc_pages(__GFP_HIGHMEM, HUGETLB_PAGE_ORDER);
+#endif /* CONFIG_NUMA */
if (!page)
break;
for (j = 0; j < HPAGE_SIZE/PAGE_SIZE; ++j)
next reply other threads:[~2003-07-14 19:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-14 19:20 Nick Pollitt [this message]
2003-07-14 19:40 ` HUGETLB pages on multiple nodes William Lee Irwin III
2003-07-17 15:20 ` Christoph Hellwig
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