linux-kernel - solid state drive access and context switching

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <47548BF4.3010907@nortel.com>
Date:	Mon, 03 Dec 2007 17:06:28 -0600
From:	"Chris Friesen" <cfriesen@...tel.com>
To:	linux-kernel@...r.kernel.org
Subject: solid state drive access and context switching

Over on comp.os.linux.development.system someone asked an interesting 
question, and I thought I'd mention it here.

Given a fast low-latency solid state drive, would it ever be beneficial 
to simply wait in the kernel for synchronous read/write calls to 
complete?  The idea is that you could avoid at least two task context 
switches, and if the data access can be completed at less cost than 
those context switches it could be an overall win.

Has anyone played with this concept?

Chris

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/