Process packets in bursts.HEADreplicant-6.0-0004-transitionreplicant-6.0-0004-rc6replicant-6.0-0004-rc5-transitionreplicant-6.0-0004-rc5replicant-6.0-0004-rc4replicant-6.0-0004-rc3replicant-6.0-0004-rc2replicant-6.0-0004-rc1replicant-6.0-0004replicant-6.0-0003replicant-6.0-0002replicant-6.0-0001stable/cm-13.0-ZNH5Ycm-13.0

Add a "packet_burst" config option that will cause clatd to read
(and write) in bursts of up to that number of packets, instead of
always only reading one packet at a time. This reduces poll
overhead and improves performance.

The variable is initially set to 10.

Bug: 24113287
Change-Id: I7feba4127538c5a89f92e0ebea1fb75971d6b901

1 files changed, 8 insertions, 0 deletions

diff --git a/config.c b/config.c
index b147868..84a1e0e 100644
--- a/config.c
+++ b/config.c
@@ -371,6 +371,13 @@ int read_config(const char *file, const char *uplink_interface, const char *plat
     Global_Clatd_Config.use_dynamic_iid = 1;
   }
 
+  if(!config_item_int16_t(root, "packet_burst", "10", &Global_Clatd_Config.packet_burst))
+    goto failed;
+
+  if (Global_Clatd_Config.packet_burst < 1 || Global_Clatd_Config.packet_burst > 50) {
+    logmsg(ANDROID_LOG_FATAL, "invalid value packet_burst %d", Global_Clatd_Config.packet_burst);
+  }
+
   return 1;
 
 failed:
@@ -392,4 +399,5 @@ void dump_config() {
   logmsg(ANDROID_LOG_DEBUG,"ipv4_local_prefixlen = %d", Global_Clatd_Config.ipv4_local_prefixlen);
   logmsg(ANDROID_LOG_DEBUG,"plat_subnet = %s",inet_ntop(AF_INET6, &Global_Clatd_Config.plat_subnet, charbuffer, sizeof(charbuffer)));
   logmsg(ANDROID_LOG_DEBUG,"default_pdp_interface = %s",Global_Clatd_Config.default_pdp_interface);
+  logmsg(ANDROID_LOG_DEBUG,"packet burst = %d",Global_Clatd_Config.packet_burst);
 }