Messages in this thread |  | | Date | Wed, 14 Nov 2001 14:44:55 +0100 | From | Willi Nüßer <> | Subject | Comparison of PAE and Non-PAE 2..4.14 (p8) in high load |
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Hi,
after my first posting to lkml where we compared distributor provided kernels vs. a plain 2.4.14-pre8 it was pointed out that between PAE and non-PAE kernels some performance differences might exist.
We checked this last night and here are the first results. Again, a) the relevant quantity dialog steps per second is a measure for the throughput our application servers runs. b) our application server and the corresponding database (SAP DB) run on 4 way Dell, 1 GB at boot time enabled.
Results: ---------
2.4.7 2.4.14p8 PAE 2.4.14p4 non- PAE ------------------------------------------------------------- 1.80 13.42 15.47 1.10 13.28 14.76 1.20 14.08 14.63 1.26 13.17 15.30 1.35 13.41 14.51
This means that we did see a performance decrease of about 6 % compared to 2.4.14p8 nonPAE but still 2.4.14p8 is an order of magnitude faster than 2.4.7
-- Best regards Willi
----------------------------------- Willi Nuesser SAP Linuxlab
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