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Date: Mon, 05 Nov 2007 11:37:50 -0600 From: Eric Sandeen <sandeen@...hat.com> To: Alex Tomas <bzzz.tomas@...il.com> CC: Andreas Dilger <adilger@....COM>, ext4 development <linux-ext4@...r.kernel.org> Subject: Re: delalloc fragmenting files? Alex Tomas wrote: > thanks for the data. the attached patch should fix couple issues: > broken history output and policy in that smaller usable chunk to > be used. can you give it a spin, please? Hi Alex - This looks *much* better: First block: 100355 Last block: 2342657 Discontinuity: Block 30208 is at 133120 (was 130562) Discontinuity: Block 60928 is at 165891 (was 163839) Discontinuity: Block 90368 is at 197634 (was 195330) Discontinuity: Block 121856 is at 232448 (was 229121) Discontinuity: Block 150528 is at 263170 (was 261119) Discontinuity: Block 181504 is at 296963 (was 294145) Discontinuity: Block 210944 is at 328706 (was 326402) Discontinuity: Block 241664 is at 361474 (was 359425) Discontinuity: Block 272896 is at 395264 (was 392705) Discontinuity: Block 303360 is at 427010 (was 425727) Discontinuity: Block 334080 is at 459778 (was 457729) Discontinuity: Block 365568 is at 493568 (was 491265) Discontinuity: Block 395264 is at 525314 (was 523263) Discontinuity: Block 426240 is at 558082 (was 556289) .... for an 8192x1M (8G) buffered dd, I now get 88 extents, in order. Do you want the mballoc history? Now I can try some multithreaded tests :) Thanks, -Eric > thanks, Alex - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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