diff --git a/contrib/gana b/contrib/gana
index 2b8a5d137..048ad729b 160000
--- a/contrib/gana
+++ b/contrib/gana
@@ -1 +1 @@
-Subproject commit 2b8a5d1376cc20acb2d67251f636b5a9d1cf7a68
+Subproject commit 048ad729b3177a5de1726517bc905e6cd7688d0d
diff --git a/doc/.gitignore b/doc/.gitignore
index d4fa2be60..daf31a2cd 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -1,7 +1,6 @@
 *.aux
 *.dvi
 *.log
-*.pdf
 *.out
 *.snm
 *.toc
diff --git a/doc/system/.gitignore b/doc/system/.gitignore
index 3156fa055..368efd05f 100644
--- a/doc/system/.gitignore
+++ b/doc/system/.gitignore
@@ -1,5 +1,7 @@
 thesis.pdf
 thesis-*.pdf
+system.pdf
+system-*.pdf
 thesis.out
 summary/summary-english.pdf
 *-converted-to.pdf
diff --git a/doc/system/plots/cpu.pdf b/doc/system/plots/cpu.pdf
new file mode 100644
index 000000000..6ac08a2b5
Binary files /dev/null and b/doc/system/plots/cpu.pdf differ
diff --git a/doc/system/plots/latencies.pdf b/doc/system/plots/latencies.pdf
new file mode 100644
index 000000000..f85609606
Binary files /dev/null and b/doc/system/plots/latencies.pdf differ
diff --git a/doc/system/plots/latency-summary-0.data b/doc/system/plots/latency-summary-0.data
new file mode 100644
index 000000000..8ba510704
--- /dev/null
+++ b/doc/system/plots/latency-summary-0.data
@@ -0,0 +1,7 @@
+http://192.168.42.1:8081/deposit 22.3593
+http://192.168.42.1:8081/keys 1.139
+http://192.168.42.1:8081/reserve/withdraw 22.675
+http://192.168.42.1:8081/refresh/link 7.12287
+http://192.168.42.1:8081/refresh/reveal 63.6377
+http://192.168.42.1:8081/refresh/melt 20.7065
+http://192.168.42.2:8081/admin/add/incoming 0.501
diff --git a/doc/system/plots/latency-summary-100.data b/doc/system/plots/latency-summary-100.data
new file mode 100644
index 000000000..4b282e66a
--- /dev/null
+++ b/doc/system/plots/latency-summary-100.data
@@ -0,0 +1,7 @@
+http://192.168.42.1:8081/deposit 223.217
+http://192.168.42.1:8081/keys 201.251
+http://192.168.42.1:8081/reserve/withdraw 222.458
+http://192.168.42.1:8081/refresh/link 205.331
+http://192.168.42.1:8081/refresh/reveal 466.303
+http://192.168.42.1:8081/refresh/melt 223.9
+http://192.168.42.2:8081/admin/add/incoming 0.485
diff --git a/doc/system/plots/req-received.data b/doc/system/plots/req-received.data
new file mode 100644
index 000000000..d26da40f1
--- /dev/null
+++ b/doc/system/plots/req-received.data
@@ -0,0 +1,7 @@
+http://192.168.42.1:8081/deposit 0.339055
+http://192.168.42.1:8081/keys 3.748
+http://192.168.42.1:8081/reserve/withdraw 0.722583
+http://192.168.42.1:8081/refresh/link 3.15716
+http://192.168.42.1:8081/refresh/reveal 2.10851
+http://192.168.42.1:8081/refresh/melt 0.35252
+http://192.168.42.2:8081/admin/add/incoming 0.177
diff --git a/doc/system/plots/req-sent.data b/doc/system/plots/req-sent.data
new file mode 100644
index 000000000..40f524d30
--- /dev/null
+++ b/doc/system/plots/req-sent.data
@@ -0,0 +1,7 @@
+http://192.168.42.1:8081/deposit 1.36432
+http://192.168.42.1:8081/keys 0.145
+http://192.168.42.1:8081/reserve/withdraw 0.711581
+http://192.168.42.1:8081/refresh/link 0.215
+http://192.168.42.1:8081/refresh/reveal 1.42
+http://192.168.42.1:8081/refresh/melt 1.06365
+http://192.168.42.2:8081/admin/add/incoming 0.386
diff --git a/doc/system/plots/speed.pdf b/doc/system/plots/speed.pdf
new file mode 100644
index 000000000..b809c1d21
Binary files /dev/null and b/doc/system/plots/speed.pdf differ
diff --git a/doc/system/taler-arch-full.pdf b/doc/system/taler-arch-full.pdf
new file mode 100644
index 000000000..9c3d8f2c4
Binary files /dev/null and b/doc/system/taler-arch-full.pdf differ