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<div>I should have referred to it as a dependency-tree. Each pc file requires every pc file higher in the sequence.</div>
<div>Thanks,</div>
<div>Sean B</div>
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<span style="font-weight:bold">From: </span>Sean Byland <<a href="mailto:seanb@cray.com">seanb@cray.com</a>><br>
<span style="font-weight:bold">Date: </span>Wednesday, June 19, 2013 1:40 PM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:pkg-config@lists.freedesktop.org">pkg-config@lists.freedesktop.org</a>" <<a href="mailto:pkg-config@lists.freedesktop.org">pkg-config@lists.freedesktop.org</a>><br>
<span style="font-weight:bold">Subject: </span>pkg-config performance with >= 15 dependency chain<br>
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<div>Hello,</div>
<div>This rudimentary script shows that pkg-config's performance when building a depended chain. It is extremely quick when the chain length is under 12, but seems to slow down exponentially becoming unacceptably slow after about 16. I know of some scientific
libraries that have 50 length dependency chains . Is there a simple method to increase the performance and these longer lengths. I know all libraries for a single product could be put into a single pc file, but it seems like a shame to loose the single library
"addressability" .</div>
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<div>Thanks,</div>
<div>Sean B.</div>
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<div>Bound #9 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.004s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.000s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.004s</div>
<div>Bound #10 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.005s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.004s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.000s</div>
<div>Bound #11 :</div>
<div><br>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.011s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.008s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.004s</div>
<div>Bound #12 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.033s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.028s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.000s</div>
<div>Name:1</div>
<div>Bound #13 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.128s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.128s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.000s</div>
<div>Bound #14 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.513s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.508s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.004s</div>
<div>Bound #15 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m2.179s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m2.176s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.004s</div>
<div>Bound #16 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m10.153s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m10.153s</div>
<div>sys<span class="Apple-tab-span" style="white-space:pre"> </span>0m0.000s</div>
<div>Bound #17 :</div>
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<div>real<span class="Apple-tab-span" style="white-space:pre"> </span>0m42.787s</div>
<div>user<span class="Apple-tab-span" style="white-space:pre"> </span>0m42.787s</div>
<div>sys<span class="Apple-tab-span" style="white-space: pre; "> </span>0m0.000s </div>
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