我的输入文件结构如下：
input.txt
system.switch_cpus.commit.op_class_0::SimdFloatMultAcc 0 0.00% 59.63% # Class of committed instruction
936 system.switch_cpus.commit.op_class_0::SimdFloatSqrt 0 0.00% 59.63% # Class of committed instruction
937 system.switch_cpus.commit.op_class_0::MemRead 3451622 34.52% 94.15% # Class of committed instruction
938 system.switch_cpus.commit.op_class_0::MemWrite 585428 5.85% 100.00% # Class of committed instruction
939 system.switch_cpus.commit.op_class_0::FloatMemRead 0 0.00% 100.00% # Class of committed instruction
940 system.switch_cpus.commit.op_class_0::FloatMemWrite 0 0.00% 100.00% # Class of committed instruction
941 system.switch_cpus.commit.op_class_0::IprAccess 0 0.00% 100.00% # Class of committed instruction
942 system.switch_cpus.commit.op_class_0::InstPrefetch 0 0.00% 100.00% # Class of committed instruction
943 system.switch_cpus.commit.op_class_0::total 10000000 # Class of committed instruction
944 system.switch_cpus.commit.bw_lim_events 10000000 # number cycles where commit BW limit reached
945 system.switch_cpus.rob.rob_reads 80558432 # The number of ROB reads
946 system.switch_cpus.rob.rob_writes 43430539 # The number of ROB writes
947 system.switch_cpus.timesIdled 37218 # Number of times that the entire CPU went into an idle state and unscheduled itself
948 system.switch_cpus.idleCycles 2755508 # Total number of cycles that the CPU has spent unsched uled due to idling
949 system.switch_cpus.committedInsts 10000000 # Number of Instructions Simulated
950 system.switch_cpus.committedOps 10000000 # Number of Ops (including micro ops) Simulated
951 system.switch_cpus.cpi 8.369191 # CPI: Cycles Per Instruction
952 system.switch_cpus.cpi_total 8.369191 # CPI: Total CPI of All Threads
953 system.switch_cpus.ipc 0.119486 # IPC: Instructions Per Cycle
954 system.switch_cpus.ipc_total 0.119486 # IPC: Total IPC of All Threads
955 system.switch_cpus.int_regfile_reads 21773538 # number of integer regfile reads
956 system.switch_cpus.int_regfile_writes 9447282 # number of integer regfile writes
我试图找到一个未在输入文件中直接报告的值，但需要一个简单的算术运算。
以下是我正在使用的代码：
Code:
1 list=(IPC CycleCount CommitCount LDQ_Stall STQ_Stall IQ_Stall ROB_STALL BTBMiss BrCount BrMisPred LDCount STCount ICacheMissCount L d_miss_Count St_miss_Count)
2 IPC="system.switch_cpus.ipc"
3 CycleCount="system.switch_cpus.numCycles"
4 CommitCount="system.switch_cpus.commit.committedInsts"
5 LDQ_Stall="system.switch_cpus.rename.LQFullEvents"
6 STQ_Stall="system.switch_cpus.rename.SQFullEvents"
7 IQ_Stall="system.switch_cpus.rename.IQFullEvents"
8 ROB_STALL="system.switch_cpus.rename.ROBFullEvents"
9 BTBLookups="system.switch_cpus.branchPred.BTBLookups"
10 BTBHits="system.switch_cpus.branchPred.BTBHits"
11 #BTBMiss="$BTBLookups-$BTBHits"
12 BrCount="system.switch_cpus.commit.branches"
13 BrMisPred="system.switch_cpus.commit.branchMispredicts"
14 LDCount="system.switch_cpus.commit.loads"
15 #STCount="system.switch_cpus.commit.refs"-"$LDCount"
16 IcacheMissCount="system.cpu.icache.overall_misses::total"
17 Ld_miss_Count="system.cpu.dcache.ReadReq_misses::total"
18 St_miss_Count="system.cpu.dcache.WriteReq_misses::total"
19
20
21
22
23
24 for i in ${list[@]}:
25 do
26 # echo "$i"
27 echo ${!i}
28 if [ "${i}" == "BTBMiss"]; then
29 lookup=$(awk -v a="${BTBLookups}" '{if ($1==a) {print $2})
30 hits=$(awk -v a="${BTBHits}" '{if ($1==a) {print $2}})
31 echo "$i = $((lookup-hits))"
32
33 elif [$i=="STCount"];then
34
35 refcount=`awk '($1=="system.switch_cpus.commit.refs") {print $2}'`
36 ldcount=`awk '($1=="system.switch_cpus.commit.loads") {print$2}'`
37 echo "$i = $((refcount-ldcount))"
38
39 else
40 awk -v a="${!i}" '{if ($1==a) {print $2}}' $1
41 fi
42 done
对于每个列表元素，如果元素匹配“BTBMiss”，它应该找到代码中列出的值并报告该数字。否则，它将执行从input.txt文件中查找每个元素值的常规操作。 运行代码，我的代码中的“if”语句出现了一些奇怪的问题：
$--> ./parser.sh input.txt
system.switch_cpus.ipc
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [IPC==STCount]: command not found
0.119486
system.switch_cpus.numCycles
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [CycleCount==STCount]: command not found
83691906
system.switch_cpus.commit.committedInsts
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [CommitCount==STCount]: command not found
10000000
system.switch_cpus.rename.LQFullEvents
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [LDQ_Stall==STCount]: command not found
59696
system.switch_cpus.rename.SQFullEvents
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [STQ_Stall==STCount]: command not found
1546
system.switch_cpus.rename.IQFullEvents
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [IQ_Stall==STCount]: command not found
109463
system.switch_cpus.rename.ROBFullEvents
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [ROB_STALL==STCount]: command not found
9574
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [BTBMiss==STCount]: command not found
system.switch_cpus.commit.branches
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [BrCount==STCount]: command not found
2478601
system.switch_cpus.commit.branchMispredicts
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [BrMisPred==STCount]: command not found
442168
system.switch_cpus.commit.loads
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [LDCount==STCount]: command not found
3451622
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [STCount==STCount]: command not found
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [ICacheMissCount==STCount]: command not found
system.cpu.dcache.ReadReq_misses::total
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [Ld_miss_Count==STCount]: command not found
2233581
./parser.sh: line 28: [: missing `]'
./parser.sh: line 33: [St_miss_Count:==STCount]: command not found
if if ... elif ... else语句我做错了什么？
答案 0 :(得分：0)
这似乎有效：
1 list=(IPC CycleCount CommitCount LDQ_Stall STQ_Stall IQ_Stall ROB_STALL BTBMiss BrCount BrMisPred LDCount STCount IcacheMissCount Ld_miss_Count St_miss_Count)
2 IPC="system.switch_cpus.ipc"
3 CycleCount="system.switch_cpus.numCycles"
4 CommitCount="system.switch_cpus.commit.committedInsts"
5 LDQ_Stall="system.switch_cpus.rename.LQFullEvents"
6 STQ_Stall="system.switch_cpus.rename.SQFullEvents"
7 IQ_Stall="system.switch_cpus.rename.IQFullEvents"
8 ROB_STALL="system.switch_cpus.rename.ROBFullEvents"
9 BTBLookups="system.switch_cpus.branchPred.BTBLookups"
10 BTBHits="system.switch_cpus.branchPred.BTBHits"
11 #BTBMiss="$BTBLookups-$BTBHits"
12 BrCount="system.switch_cpus.commit.branches"
13 BrMisPred="system.switch_cpus.commit.branchMispredicts"
14 LDCount="system.switch_cpus.commit.loads"
15 #STCount="system.switch_cpus.commit.refs"-"$LDCount"
16 IcacheMissCount="system.cpu.icache.overall_misses::total"
17 Ld_miss_Count="system.cpu.dcache.ReadReq_misses::total"
18 St_miss_Count="system.cpu.dcache.WriteReq_misses::total"
19
20
21
22
23
24 for i in "${list[@]}"
25 do
26 # echo "$i"
27 # echo ${!i}
28 if [ "${i}" == "BTBMiss" ]; then
29 lookup=$(awk -v a="${BTBLookups}" '{if ($1==a) print $2}' $1)
30 hits=$(awk -v a="${BTBHits}" '{if ($1==a) print $2}' $1)
31 echo "$i = $((lookup-hits))"
32
33 elif [ $i == "STCount" ];then
34
35 refcount=`awk '($1=="system.switch_cpus.commit.refs") {print $2}' $1`
36 ldcount=`awk '($1=="system.switch_cpus.commit.loads") {print$2}' $1`
37 echo "$i = $((refcount-ldcount))"
38
39 else
40 value=$(awk -v a="${!i}" '{if ($1==a) print $2}' $1)
41 echo "$i = $value"
42 fi
43 done
输出：
./parser.sh out/stats.txt
IPC = 0.119486
CycleCount = 83691906
CommitCount = 10000000
LDQ_Stall = 59696
STQ_Stall = 1546
IQ_Stall = 109463
ROB_STALL = 9574
BTBMiss = 3562
BrCount = 2478601
BrMisPred = 442168
LDCount = 3451622
STCount = 585428
IcacheMissCount = 36218
Ld_miss_Count = 2233581
St_miss_Count = 207436