Messages in this thread | | | Date | Tue, 14 Jun 2011 21:46:55 +0800 | From | Wu Fengguang <> | Subject | Re: [PATCH] writeback: trace global_dirty_state |
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On Mon, Jun 13, 2011 at 10:33:56PM +0800, Jan Kara wrote: > On Fri 10-06-11 22:48:05, Wu Fengguang wrote: > > [It seems beneficial to queue this simple trace event for > > next/upstream after the review?] > > > > Add trace event balance_dirty_state for showing the global dirty page > > counts and thresholds at each global_dirty_limits() invocation. This > > will cover the callers throttle_vm_writeout(), over_bground_thresh() > > and each balance_dirty_pages() loop. > OK, this might be useful. But shouldn't we also add similar trace point > for bdi limits? Otherwise the information is of limited use...
Good point. The bdi limits will be exported in another balance_dirty_pages trace point.
Thanks, Fengguang
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