From: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Dennis Dalessandro
<dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Tymoteusz Kielan
<tymoteusz.kielan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Mike Marciniszyn
<mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Tadeusz Struk
<tadeusz.struk-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v2 05/15] IB/hfi1: Adjust default eager_buffer_size to 8MB
Date: Thu, 4 May 2017 15:42:32 +0300 [thread overview]
Message-ID: <20170504124232.GT22833@mtr-leonro.local> (raw)
In-Reply-To: <20170504121421.32747.27378.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
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On Thu, May 04, 2017 at 05:14:22AM -0700, Dennis Dalessandro wrote:
> From: Tymoteusz Kielan <tymoteusz.kielan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
>
> Performance analysis shows benefits for PSM2 in increasing eager buffer
> size from 2MB to 8MB. The change has neutral impact on verbs.
> Make change to the module parameter's default value. Allocation
> ring down was verified to work with the larger buffer size.
>
> Reviewed-by: Tadeusz Struk <tadeusz.struk-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Reviewed-by: Mike Marciniszyn <mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Reviewed-by: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Tymoteusz Kielan <tymoteusz.kielan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> ---
Impressive list :)
> drivers/infiniband/hw/hfi1/init.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
> index 71b0204..c573f06 100644
> --- a/drivers/infiniband/hw/hfi1/init.c
> +++ b/drivers/infiniband/hw/hfi1/init.c
> @@ -102,9 +102,9 @@
> module_param_named(rcvarr_split, hfi1_rcvarr_split, uint, S_IRUGO);
> MODULE_PARM_DESC(rcvarr_split, "Percent of context's RcvArray entries used for Eager buffers");
>
> -static uint eager_buffer_size = (2 << 20); /* 2MB */
> +static uint eager_buffer_size = (8 << 20); /* 8MB */
> module_param(eager_buffer_size, uint, S_IRUGO);
> -MODULE_PARM_DESC(eager_buffer_size, "Size of the eager buffers, default: 2MB");
> +MODULE_PARM_DESC(eager_buffer_size, "Size of the eager buffers, default: 8MB");
>
> static uint rcvhdrcnt = 2048; /* 2x the max eager buffer count */
> module_param_named(rcvhdrcnt, rcvhdrcnt, uint, S_IRUGO);
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
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next prev parent reply other threads:[~2017-05-04 12:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-04 12:13 [PATCH v2 00/15] IB/hfi1: hfi1 driver patches for-next Dennis Dalessandro
[not found] ` <20170504120126.32747.45131.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2017-05-04 12:13 ` [PATCH v2 01/15] IB/hfi1: Fix checks for Offline transient state Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 02/15] IB/hfi1, IB/rdmavt: Move r_adefered to r_lock cache line Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 03/15] IB/hfi1: Fix yield logic in send engine Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 04/15] IB/hfi1: Get rid of divide when setting the tx request header Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 05/15] IB/hfi1: Adjust default eager_buffer_size to 8MB Dennis Dalessandro
[not found] ` <20170504121421.32747.27378.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2017-05-04 12:42 ` Leon Romanovsky [this message]
2017-05-04 12:14 ` [PATCH v2 06/15] IB/hfi1: Return an error on memory allocation failure Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 07/15] IB/hfi1: Fix a subcontext memory leak Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 08/15] IB/hfi1: Name function prototype parameters Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 09/15] IB/hfi1: Use filedata rather than filepointer Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 10/15] IB/hfi1: Remove atomic operations for SDMA_REQ_HAVE_AHG bit Dennis Dalessandro
2017-05-04 12:14 ` [PATCH v2 11/15] IB/hfi1: Search shared contexts on the opened device, not all devices Dennis Dalessandro
2017-05-04 12:15 ` [PATCH v2 12/15] IB/hfi1: Correctly clear the pkey Dennis Dalessandro
2017-05-04 12:15 ` [PATCH v2 13/15] IB/hfi1: Clean up context initialization Dennis Dalessandro
2017-05-04 12:15 ` [PATCH v2 14/15] IB/hfi1: Fix an assign/ordering issue with shared context IDs Dennis Dalessandro
2017-05-04 12:15 ` [PATCH v2 15/15] IB/hfi1: Clean up on context initialization failure Dennis Dalessandro
2017-05-04 23:45 ` [PATCH v2 00/15] IB/hfi1: hfi1 driver patches for-next Doug Ledford
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