Blame SOURCES/0020-curl-7.29.0-d529f388.patch
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From 4274decb62daca78c9d43a025fc08f8d6fd3a341 Mon Sep 17 00:00:00 2001
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From: Daniel Stenberg <daniel@haxx.se>
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Date: Sun, 14 Jul 2013 17:33:24 +0200
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Subject: [PATCH] curl_easy_perform: gradually increase the delay time
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Instead of going 50,100,150 etc millisecond delay time when nothing has
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been found to do or wait for, we now start lower and double each loop as
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in 4,8,16,32 etc.
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This lowers the minimum wait without sacrifizing the longer wait too
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much with unnecessary CPU cycles burnt.
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Bug: http://curl.haxx.se/mail/lib-2013-07/0103.html
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Reported-by: Andreas Malzahn
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[upstream commit d529f3882b9bca2c3eb32295dd6b2609d0c9b51f]
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Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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---
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lib/easy.c | 4 +---
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1 file changed, 1 insertion(+), 3 deletions(-)
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diff --git a/lib/easy.c b/lib/easy.c
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index a7051dd..13801b2 100644
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--- a/lib/easy.c
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+++ b/lib/easy.c
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@@ -465,9 +465,7 @@ CURLcode curl_easy_perform(CURL *easy)
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if(curlx_tvdiff(after, before) <= 10) {
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without_fds++;
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if(without_fds > 2) {
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- int sleep_ms = without_fds * 50;
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- if(sleep_ms > 1000)
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- sleep_ms = 1000;
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+ int sleep_ms = without_fds < 10 ? (1 << (without_fds-1)): 1000;
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Curl_wait_ms(sleep_ms);
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}
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}
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--
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1.9.3
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