From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chen, Kenneth W" Date: Fri, 14 Mar 2003 15:51:53 +0000 Subject: RE: [Linux-ia64] page size > 16KB Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org > yep, I'm doing some benchmark stuff with SAP/SAPDB and the performance > is not as good as I expected. CONFIG_HUGETLB_PAGE=y is standard on a > SLES8 kernel (2.4.19-SMP). I changed the page size from 16K to 64K > and the performance increase was 2-3 percent. Changing Huge TLB Page > Size" seems not to have any effect. > 2110715 cpu_idle 5996.3494 Get rid of this idle would give you much sizeable gain. Doesn't look like the benchmark is saturating the CPU. What is your CPU utilization rate?