-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Naohiko Shimizu Sent: Thursday, July 13, 2000 8:29 AM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: [PATCH] Alpha's Page Granurality Hint support I made a patch against 2.4.0-test1 ( but worked fine on 2.4.0-test2 also) that suport Alpha's page granurality hint feature. See http://shimizu-lab.et.u-tokai.ac.jp/~nshimizu for the patch and benchmarks to check the performance. The Alpha architecture defines Granularity Hint(GH) bits in the Page Table Entry(PTE). If these bits are set to non-zero value, it supply a hint to translation buffer implementations that a block of pages can be treated as a single larger page. With my patch we will have the opportunity to reduce translation misses. On a matrix transpose benchmark it will accelerate the performance about 30 to 40 %. General HPC applications will run 10 to 20% faster than the normal kernel, I think. Enjoy, Naohiko Shimizu Dept. Communication Engr./Univ. TOKAI 1117 Kitakaname Hiratsuka 259-12 Japan TEL.+81-463-58-1211(ext. 4084) FAX.+81-463-58-8320 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
