https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-11573 Lustre <p>osd-ldiskfs has hard-coded limit on number of pages in a single IO:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> bio = bio_alloc(GFP_NOIO, min(BIO_MAX_PAGES, </pre> </div></div> <p>where</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> #define BIO_MAX_PAGES 256 </pre> </div></div> <p>so it can't form IOs larger than 256 pages or 1MB.</p> LU-11573

enable large IOs with ldiskfs

Improvement Minor Open Unresolved Alex Zhuravlev Alex Zhuravlev Thu, 25 Oct 2018 16:33:59 +0000 Tue, 16 Jan 2024 06:20:18 +0000 0 10 <p>Can you take into consideration non 4K page systems, i.e ARM and Power8.</p> <p>well, it's 512 on my setup with linux-4.18.0-477.15.1.el8_8 kernel which gives 2MB IO max.</p> Related Development Rank 1|i0054f: Rank (Obsolete) 9223372036854775807