-Comment expliquer ces différences entre SG 3.5 et SG svn ?
-
-$ ./loba platform.xml -Tline -abest -L500 -t1800 -c1e8,0 -C1e7,0 -M0 2>&1 --log=comm.thres:debug -s100 -b | grep LOAD
-[Bourassa 1031.097913] [comm/DEBUG] send LOAD: 366.211 to Fafard_data
-[Bourassa 1306.997159] [comm/DEBUG] send LOAD: 20.0806 to Fafard_data
-[Bourassa 1541.486345] [comm/DEBUG] send LOAD: 4.74548 to Fafard_data
-[Bourassa 1766.189415] [comm/DEBUG] send LOAD: 3.09753 to Fafard_data
-[Fafard 2579.229566] [comm/DEBUG] received LOAD: 366.211 from Bourassa
-[Fafard 2605.989948] [comm/DEBUG] received LOAD: 20.0806 from Bourassa
-[Fafard 2612.318155] [comm/DEBUG] received LOAD: 4.74548 from Bourassa
-[Fafard 2616.450666] [comm/DEBUG] received LOAD: 3.09753 from Bourassa
-
-$ ./loba-dev platform_dev.xml -Tline -abest -L500 -t1800 -c1e8,0 -C1e7,0 -M0 2>&1 --log=comm.thres:debug -s100 -b | grep LOAD
-[Bourassa 1031.097913] [comm/DEBUG] send LOAD: 366.211 to Fafard_data
-[Bourassa 1306.997159] [comm/DEBUG] send LOAD: 20.0806 to Fafard_data
-[Fafard 1519.035900] [comm/DEBUG] received LOAD: 366.211 from Bourassa
-[Fafard 1519.035900] [comm/DEBUG] send LOAD: 282.074 to Ginette_data
-[Bourassa 1541.486345] [comm/DEBUG] send LOAD: 4.74548 to Fafard_data
-[Fafard 1629.312931] [comm/DEBUG] received LOAD: 20.0806 from Bourassa
-[Fafard 1629.312931] [comm/DEBUG] received LOAD: 4.74548 from Bourassa
-[Fafard 1629.312931] [comm/DEBUG] send LOAD: 6.19507 to Ginette_data
-[Bourassa 1766.189415] [comm/DEBUG] send LOAD: 3.09753 to Fafard_data
-[Fafard 1898.705676] [comm/DEBUG] received LOAD: 3.09753 from Bourassa
-[Ginette 1932.076243] [comm/DEBUG] received LOAD: 282.074 from Fafard
-[Ginette 1940.343540] [comm/DEBUG] received LOAD: 6.19507 from Fafard
-
-Probablement par un bug dans SG 3.5.
+-- Wed, 02 May 2018 10:48:05 +0200
+
+Fort ralentissement d'un facteur 2, voire plus, avec les versions récentes de
+SimGrid (3.18, 3.19.1). Il semblerait que l'utilisation d'exceptions en cas de
+timeout dans les simcalls soit coûteuse. À vérifier.
+
+-- Mon, 07 May 2018 16:05:49 +0200
+
+Les exceptions ne sont plus utilisées depuis le commit
+8efeb3a6aa2c201800a3ba19416ea9728af3bff6 (Stop using costly exceptions on
+timeout for simix synchros).
+
+Le ralentissement restant dans lmm_solve() semble venir essentiellement du
+commit f3677661714bf6122d678071c0bd44141417be14 (Fix bug #17132 (surf.c:366: The
+Impossible Did Happen (yet again))).