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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW bisected] OglGSCloth/Lightsmark/CS/ Portal/ Half Life 2 games performance decreased by 15%-45%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90112#c40">Comment # 40</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW bisected] OglGSCloth/Lightsmark/CS/ Portal/ Half Life 2 games performance decreased by 15%-45%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90112">bug 90112</a>
from <span class="vcard"><a class="email" href="mailto:hengx.ding@intel.com" title="Ding Heng <hengx.ding@intel.com>"> <span class="fn">Ding Heng</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=90112#c39">comment #39</a>)
<span class="quote">> byt OglGSCloth
>
> Note that chv doesn't use the full RPS autotuning. You can try
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c
> b/drivers/gpu/drm/i915/intel_pm.c
> index 5eed3caba483..ef733d164cec 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -4120,7 +4120,7 @@ static bool valleyview_set_rps(struct drm_i915_private
> *dev_priv, u8 val)
> if (vlv_punit_write(dev_priv, PUNIT_REG_GPU_FREQ_REQ, val))
> return false;
>
> - if (!IS_CHERRYVIEW(dev_priv))
> + if (1)
> gen6_set_rps_thresholds(dev_priv, val);
>
> dev_priv->rps.cur_freq = val;
>
> and see if that makes any difference</span >
I can see OglGSCloth performance increased by about 10% on BYT. But lightsmark
performance is still lower than before on BSW.</pre>
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