From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sunil Mushran Date: Tue, 04 Jan 2011 14:33:20 -0800 Subject: [Ocfs2-devel] [PATCH 00/34] OCFS2: Add trace event and replace mlog(0). In-Reply-To: <20110104221517.GB30671@mail.oracle.com> References: <4D12F7E7.1090204@tao.ma> <20101231125217.GC21179@mail.oracle.com> <4D1DF2A3.9090106@tao.ma> <20101231223951.GC20521@mail.oracle.com> <4D22E32D.40406@tao.ma> <20110104221517.GB30671@mail.oracle.com> Message-ID: <4D23A030.6000306@oracle.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ocfs2-devel@oss.oracle.com On 01/04/2011 02:15 PM, Joel Becker wrote: > > I think what matters to count is dirs, because files disappear > when you're not using them. > If you have 319 trace event directories, that's 319 inodes. On > my x86, a vanilla struct inode is 360 bytes and a dentry is 136 bytes. > That's 154K always in RAM for these knobs. I gotta say that I'm not too > worried about 154K. On x86_64 (ca-build24) this grows to 241K. I > imagine it will double when cluster and dlm are moved to similar trace > events. > Are we OK with 300K on x86 and 500K on x86_64 always used up by > these tracing entries? I'm ok with that.