diff --git a/go/chromiumos/bot_scaling.pb.go b/go/chromiumos/bot_scaling.pb.go
index 8c68de9..a9cc215 100644
--- a/go/chromiumos/bot_scaling.pb.go
+++ b/go/chromiumos/bot_scaling.pb.go
@@ -121,7 +121,9 @@
 	// The number of cores per bot. Will be used to limit quota usage.
 	CoresPerBot int32 `protobuf:"varint,2,opt,name=cores_per_bot,json=coresPerBot,proto3" json:"cores_per_bot,omitempty"`
 	// Estimated hourly cost.
-	HourlyCost           float32  `protobuf:"fixed32,3,opt,name=hourly_cost,json=hourlyCost,proto3" json:"hourly_cost,omitempty"`
+	HourlyCost float32 `protobuf:"fixed32,3,opt,name=hourly_cost,json=hourlyCost,proto3" json:"hourly_cost,omitempty"`
+	// Amount of memory in GB allocated to bot.
+	MemoryGb             float32  `protobuf:"fixed32,4,opt,name=memory_gb,json=memoryGb,proto3" json:"memory_gb,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -173,6 +175,13 @@
 	return 0
 }
 
+func (m *BotType) GetMemoryGb() float32 {
+	if m != nil {
+		return m.MemoryGb
+	}
+	return 0
+}
+
 // Defines Swarming dimensions associated with a bot group.
 type SwarmingDimension struct {
 	// Dimesion name
@@ -789,64 +798,64 @@
 func init() { proto.RegisterFile("chromiumos/bot_scaling.proto", fileDescriptor_dbe70eabfd64e7ef) }
 
 var fileDescriptor_dbe70eabfd64e7ef = []byte{
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+	0xb0, 0xd6, 0x0a, 0x9d, 0x42, 0x6d, 0xee, 0xcc, 0xa6, 0xc3, 0xfe, 0xf8, 0x66, 0x3c, 0x1c, 0x34,
+	0x9f, 0xa1, 0x0a, 0x14, 0x5f, 0x0d, 0x67, 0x4d, 0x0b, 0x95, 0xa1, 0xe0, 0x4c, 0x9a, 0x85, 0x36,
+	0x86, 0x3a, 0x26, 0x82, 0x2d, 0x79, 0x40, 0xe6, 0xc2, 0x0b, 0xa5, 0x6f, 0x8b, 0x8f, 0xb1, 0x30,
+	0xd3, 0x2a, 0x3f, 0xe5, 0x6b, 0x11, 0xa4, 0x4b, 0xa1, 0xf2, 0x29, 0x60, 0xf5, 0xbd, 0xfd, 0xe6,
+	0x14, 0x77, 0xde, 0x9c, 0xbf, 0x2c, 0x68, 0x60, 0xe6, 0xb3, 0x3e, 0x67, 0xa9, 0xa9, 0xb6, 0x07,
+	0xa7, 0xf9, 0xbf, 0x26, 0x6f, 0x80, 0xb6, 0xe2, 0x8b, 0x77, 0x36, 0x00, 0x37, 0xc4, 0x66, 0x28,
+	0xd0, 0xf7, 0xd0, 0xe0, 0x26, 0x55, 0x77, 0x29, 0x73, 0x35, 0x46, 0xdb, 0xa2, 0xd8, 0x2a, 0x06,
+	0xd7, 0xf9, 0x66, 0xd8, 0xfb, 0xfa, 0x97, 0xaf, 0x42, 0xf6, 0xb4, 0xbb, 0xcb, 0x78, 0x78, 0xb9,
+	0xf1, 0xa2, 0xd3, 0xe4, 0x9e, 0x7b, 0x97, 0xea, 0x2d, 0xbf, 0x0c, 0xd9, 0xc6, 0x8a, 0x5f, 0x56,
+	0xe0, 0x97, 0xff, 0x06, 0x00, 0x00, 0xff, 0xff, 0x60, 0x3d, 0xfc, 0x2c, 0x00, 0x08, 0x00, 0x00,
 }
diff --git a/src/chromiumos/bot_scaling.proto b/src/chromiumos/bot_scaling.proto
index e1e62a7..14fe205 100644
--- a/src/chromiumos/bot_scaling.proto
+++ b/src/chromiumos/bot_scaling.proto
@@ -16,6 +16,8 @@
   int32 cores_per_bot = 2;
   // Estimated hourly cost.
   float hourly_cost = 3;
+  // Amount of memory in GB allocated to bot.
+  float memory_gb = 4;
 }
 
 // Defines Swarming dimensions associated with a bot group.